U.S. Route 20 in Idaho
U. S. Route 20 is the portion of an east–west U. S. Highway in the state of Idaho, it begins northwest of Parma at the Oregon state line and ends at least 9.6 miles away from the Yellowstone National Park west entrance at the Montana state line. US 20 crosses into Idaho northwest of Parma, running concurrently with US 26 and joins US 95 through Parma. US 20/US 26 leaves US 95 southeast of Parma and runs to Caldwell where US 20/US 26 joins with I-84 and US 30 for a short time; these four highways parallel each other to Boise where US 20/US 26 runs through downtown before joining with I-84 and US 30 again to Mountain Home, where it departs at exit 95 to head east, past Rattlesnake Station, Anderson Ranch Dam road, cresting at Cat Creek summit at 5,527 feet above mean sea level. It continues into and across Camas County through Fairfield to Timmerman Junction, the intersection in Blaine County with State Highway 75, the route to Sun Valley, Galena Summit, Stanley. US 20 continues east through Picabo and Carey, joined with US 26 and US 93, to Craters of the Moon and Arco, where US 93 splits off and turns north-northwest to climb the Big Lost River valley.
US 20/US 26 continues on through the Idaho National Laboratory, where the highways split just west of Atomic City. US 20 climbs through the communities of St. Anthony and Island Park, crosses the Continental Divide at Targhee Pass at 7,072 feet, entering Montana west of West Yellowstone. US 20 was expanded past Yellowstone National Park in 1940; the Rigby Freeway section of US 20, extending from Idaho Falls to St. Anthony, was constructed in the 1970s, its northernmost section still featured at-grade intersections until the 2000s, when they were replaced with full interchanges
Idaho is a state in the northwestern region of the United States. It borders the state of Montana to the east and northeast, Wyoming to the east and Utah to the south, Washington and Oregon to the west. To the north, it shares a small portion of the Canadian border with the province of British Columbia. With a population of 1.7 million and an area of 83,569 square miles, Idaho is the 14th largest, the 12th least populous and the 7th least densely populated of the 50 U. S. states. The state's capital and largest city is Boise. Idaho prior to European settlement was inhabited by Native American peoples, some of whom still live in the area. In the early 19th century, Idaho was considered part of the Oregon Country, an area disputed between the U. S. and the United Kingdom. It became U. S. territory with the signing of the Oregon Treaty of 1846, but a separate Idaho Territory was not organized until 1863, instead being included for periods in Oregon Territory and Washington Territory. Idaho was admitted to the Union on July 3, 1890, becoming the 43rd state.
Forming part of the Pacific Northwest, Idaho is divided into several distinct geographic and climatic regions. In the state's north, the isolated Idaho Panhandle is linked with Eastern Washington, with which it shares the Pacific Time Zone – the rest of the state uses the Mountain Time Zone; the state's south includes the Snake River Plain, while the south-east incorporates part of the Great Basin. Idaho is quite mountainous, contains several stretches of the Rocky Mountains; the United States Forest Service holds about 38 % of the most of any state. Industries significant for the state economy include manufacturing, mining and tourism. A number of science and technology firms are either headquartered in Idaho or have factories there, the state contains the Idaho National Laboratory, the country's largest Department of Energy facility. Idaho's agricultural sector supplies many products, but the state is best known for its potato crop, which comprises around one-third of the nationwide yield; the official state nickname is the "Gem State".
The name's origin remains a mystery. In the early 1860s, when the United States Congress was considering organizing a new territory in the Rocky Mountains, eccentric lobbyist George M. Willing suggested the name "Idaho", which he claimed was derived from a Shoshone language term meaning "the sun comes from the mountains" or "gem of the mountains". Willing claimed he had invented the name. Congress decided to name the area Colorado Territory when it was created in February 1861. Thinking they would get a jump on the name, locals named a community in Colorado "Idaho Springs". However, the name "Idaho" did not fall into obscurity; the same year Congress created Colorado Territory, a county called Idaho County was created in eastern Washington Territory. The county was named after a steamship named Idaho, launched on the Columbia River in 1860, it is unclear after Willing's claim was revealed. Regardless, part of Washington Territory, including Idaho County, was used to create Idaho Territory in 1863.
Despite this lack of evidence for the origin of the name, many textbooks well into the 20th century repeated as fact Willing's account the name "Idaho" derived from the Shoshone term "ee-da-how". A 1956 Idaho history textbook says:"Idaho" is a Shoshoni Indian exclamation; the word consists of three parts. The first is "Ee", which in English conveys the idea of "coming down"; the second is "dah", the Shoshoni stem or root for both "sun" and "mountain". The third syllable, "how", denotes the exclamation and stands for the same thing in Shoshoni that the exclamation mark does in the English language; the Shoshoni word is "Ee-dah-how", the Indian thought thus conveyed when translated into English means, "Behold! the sun coming down the mountain. An alternative etymology attributes the name to the Plains Apache word "ídaahę́", used in reference to The Comanche. Idaho borders six U. S. states and one Canadian province. The states of Washington and Oregon are to the west and Utah are to the south, Montana and Wyoming are to the east.
Idaho shares a short border with the Canadian province of British Columbia to the north. The landscape is rugged with some of the largest unspoiled natural areas in the United States. For example, at 2.3 million acres, the Frank Church-River of No Return Wilderness Area is the largest contiguous area of protected wilderness in the continental United States. Idaho is a Rocky Mountain state with scenic areas; the state has snow-capped mountain ranges, vast lakes and steep canyons. The waters of the Snake River rush through the deepest gorge in the United States. Shoshone Falls plunges down rugged cliffs from a height greater than Niagara Falls; the major rivers in Idaho are the Snake River, the Clark Fork/Pend Oreille River, the Clearwater River, the Salmon River. Other significant rivers include the Coeur d'Alene River, the Spokane River, the Boise River, the Payette River; the Salmon River empties into the Snake in Hells Canyon and forms the southern boundary of Nez Perce County on its north shore, of which Lewiston is the county seat.
The Port of Lewiston, at the confluence of the Clearwater and the Snake Rivers is the farthest inland seaport on the West Coast at 465 river miles from the Pacific at Astoria, Oregon. Idaho's highest point is 12,662 ft, in the Lost River Range north of Mackay. Idaho's lowest poi
U.S. Route 26
U. S. Route 26 is an east–west United States highway, it started in Ogallala and was subsequently extended to the West Coast in Oregon. When the U. S. highway system was first defined, it was limited to Wyoming. The highway's eastern terminus is in Ogallala, Nebraska at an intersection with Interstate 80, its western terminus is south of Seaside, Oregon at an intersection with U. S. Route 101. Prior to 2004, the route's last 20 miles were co-signed with U. S. Route 101 from the highways' junction south of Seaside north to Astoria where its intersection with U. S. Route 30 was U. S. 30's western terminus. Much of the highway follows the path of the historic Oregon Trail. At its peak before the establishment of the interstate highway system, US 26 was 1,557 miles in length, terminated in Astoria, Oregon. Starting at a junction with U. S. Highway 101 near Seaside, Oregon, U. S. Highway 26 heads southeast through the Coast Range to Portland. In the western Portland area, US 26 is a freeway known as the Sunset Highway.
After passing through the Vista Ridge Tunnel, heading into downtown Portland, it intersects with Interstate 405 and runs along the interstate southbound for about a half-mile before exiting onto surface streets at the waterfront, meeting Oregon Route 43 at Macadam Avenue before crossing Interstate 5. After crossing the Willamette River and meeting at an incomplete interchange with Oregon Route 99E, US26 heads east on Powell Boulevard where it crosses Interstate 205 and continues east to Sandy on what is known as the Mount Hood Highway No. 26, a four-lane divided highway, supposed to be the Mount Hood Freeway, never built just south of Division St. After passing through Sandy, Highway 26 continues on towards Government Camp and Bennett Pass, where it meets up with Oregon Route 35; the Mount Hood Highway continues north along Oregon Route 35, while Highway 26 heads southeast towards Madras, where it intersects with U. S. Route 97, it continues southeast to Prineville, where it meets Oregon Route 126 and heads east through John Day where it meets U.
S. Route 20 in Vale; the remainder of Highway 26 follows U. S. Route 20 to the Idaho state line. From the Oregon state line, U. S. 26 continues to follow U. S. 20 to Boise, with short multiplexes with U. S. Highway 95 near Parma and Interstate 84 at Caldwell. At Boise, U. S. 26/U. S. 20 merges with I-84 for about 40 miles until Mountain Home, where U. S. 20 splits from U. S. 26/I-84. About 41 miles in Bliss, U. S. 26 splits from I-84 for 66 miles until again joining U. S. 20 at Carey, skirting the north edge of Craters of the Moon National Monument. Near Idaho National Engineering Laboratory, U. S. 26 again splits from U. S. 20 to the southeast, proceeding to Blackfoot, where U. S. 26 joins Interstate 15 for about 20 miles before splitting just south of Idaho Falls toward Alpine, Wyoming. From Alpine, US 26 is co-signed with U. S. Route 89 east and north to Hoback Junction co-signed with US 89, U. S. Route 189, U. S. Route 191 to Jackson. US 189 ends in Jackson, the other three highways continue their concurrency through Grand Teton National Park up to Moran.
At "Glacier View Turnout," a view of Teton Glacier, on the north of Grand Teton, can be seen. At Moran, US 26 turns east, concurrent with U. S. Route 287. Crossing the Continental Divide at Togwotee Pass, US 26 passes through Dubois, the end of the Wyoming Centennial Scenic Byway, at Diversion Dam Junction, US 26 and US 287 separate. From Shoshoni to Casper, US 26 is co-signed with U. S. Highway 20. US 20-26 has a bypass north of Casper, the eastern half of, concurrent with Interstate 25 and U. S. Route 87. US 20-26-87 parallels I-25 from Casper to Glenrock. US 26 follows I-25 to Dwyer Junction. US 26 passes through Guernsey, Fort Laramie and Torrington before entering Nebraska. U. S. Route 85 is concurrent with US 26 between Torrington. US 26 runs southeastward parallel to the North Platte River; the largest city US 26 runs through in Nebraska is Scottsbluff, just 22 miles from the Wyoming border. US 26 goes past the Chimney Rock National Historic Site. US 26 intersects with U. S. Highway 385 in Bridgeport and continues to its eastern terminus in Ogallala, Nebraska at Interstate 80.
All told, there are 145 miles of US 26 in the state of Nebraska. U. S. Highway 320 was part of the initial 1926 system, connecting US 20 in Shoshoni with US 87W in Riverton, Wyoming, it became WYO 320 in 1938, extended southwest to Lander in 1940 when US 287 was realigned. The original part of US 320/WYO 320 became part of an extension of US 26 in 1950, the rest of WYO 320 became part of WYO 789 in 1954. Oregon US 101 south of Seaside I‑405 in Portland; the highways travel concurrently through the city. I‑205 in Portland US 97 in Madras; the highways travel concurrently through the city. US 395 in Mount Vernon; the highways travel concurrently to John Day. US 20 in Vale; the highways travel concurrently to Mountain Home. Idaho US 95 north-northwest of Parma; the highways travel concurrently to southeast of Parma. I‑84 / US 30 north of Caldwell; the highways travel concurrently to Caldwell. I‑184 in Boise; the highways travel concurrently through the city. I‑84 / US 30 in Boise. I-84/US 26 travel concurrently to Bliss.
US 26/US 30 travel concurrently to west-northwest of Bliss. US 93 in Shoshone; the highways travel concurrently to Arco. US 20 in Carey
A diamond interchange is a common type of road junction, used where a freeway crosses a minor road. The freeway itself is grade-separated from one crossing the other over a bridge. Approaching the interchange from either direction, an off-ramp diverges only from the freeway and runs directly across the minor road, becoming an on-ramp that returns to the freeway in similar fashion; the two places. In the United States, where this form of interchange is common in rural areas, traffic on the off-ramp faces a stop sign at the minor road, while traffic turning onto the freeway is unrestricted; the diamond interchange uses less space than most types of freeway interchange, avoids the interweaving traffic flows that occur in interchanges such as the cloverleaf. Thus, diamond interchanges are most effective in areas where traffic is light and a more expensive interchange type is not needed, but where traffic volumes are higher, the two intersections within the interchange feature additional traffic control measures such as traffic lights and extra lanes dedicated to turning traffic.
The at-grade variant of the diamond interchange is the split intersection. The ramp intersections may be configured as a pair of roundabouts to create a type of diamond interchange called a dumbbell interchange, sometimes called a double roundabout interchange; because roundabouts can handle traffic with fewer approach lanes than other intersection types, interchange construction costs can be reduced by eliminating the need for a wider bridge. This configuration allows other roads to form approach legs to the roundabouts and allows easy U-turns; this type of interchange is common in the United Kingdom and Ireland, is becoming common in the United States. Examples of dumbbell interchanges in the United States are located on Interstate 35 in Medford, Minnesota, on Interstate 87 in Malta, New York, on Interstate 17 at Happy Valley Road north of Phoenix, on Interstate 80 at California State Route 89 in Truckee, California. An example in Canada is found on the Pat Bay Highway in North Saanich, British Columbia, near Victoria International Airport.
One or both roundabouts in the dumbbell interchange may contain side lanes to increase the capacity. A good example of such a "turbo" dumbbell interchange, a half cloverleaf, can be seen in Jülich, Germany at 50.914055°N 6.323368°E / 50.914055. There are interchanges similar to dumbbells in which the ramps do not meet the roundabouts at intersections. One such interchange exists at the junction between the Ruta Interbalnearia and Route 35 North near La Floresta, Uruguay. A variation of the dumbbell interchange called a dogbone interchange, sometimes called a double roundabout interchange, occurs when the roundabouts do not form a complete circle but instead have a "raindrop" or "teardrop" shape; these two raindrop roundabouts are fused together. This configuration reduces conflicts between vehicles entering the raindrop roundabouts from the ramps, reducing queueing and delays, compared with the dumbbell interchange. Direct U-turns are not possible, although the movement can be made by circulating around both raindrop roundabouts.
An example of a dogbone interchange in the United States is located on Interstate 70 in Avon, Colorado. Several interchanges similar to those along Keystone Parkway are being built along the new US 31 freeway under construction in northern Indiana. There are some hybrid interchanges of dumbbell and dogbone having one raindrop and one full roundabout; this is made when the roundabout intersects more roads than ramps. Some examples are at exit 38 of the N7 road in Netherlands. A tennis ball interchange resembles a dogbone interchange, with the difference being that right turning movements cut through the roundabouts like a regular diamond interchange instead of going around the roundabout; such a design is found in Western Australia, between Roe Highway and Berkshire Road. A tight diamond interchange known as a compressed diamond interchange or a tight urban diamond interchange, is sometimes used in areas where there is insufficient right-of-way for a standard diamond interchange; the pair of intersections where the ramps meet the minor road are spaced.
This spacing forces the turn lanes for each direction to run beside each other, causing the minor road to be wider than it would be if it were a standard diamond. A single-point urban interchange is built with a large over- or clear underpass providing space for a single traffic signal controlled intersection with the ramps and the cross street. A contraflow left interchange is a modified TUDI, once installed at Lyons Road underneath Florida State Road 869, switching the left turn lanes on the cross street each other and bringing the long left turn phases from the single-point urban interchange to the tight urb
Clark County, Idaho
Clark County is a rural county in the U. S. state of Idaho. As of the 2010 Census, the county had a population of 982, making it the least populous county in the state. Establishment of stage coach stops along the route between Salt Lake City and the Montana mine were established at Beaver Canyon and Dry Creek in 1864. Part of Alturas County, both locations were transferred to Oneida County in 1877, they became part of Bingham County at its creation in 1885. Clark County was the site of the Battle of Camas Creek during the Nez Perce War which occurred at Camas Meadows near Kilgore on August 20, 1872; the Utah and Northern Railway reached Beaver Canyon in 1879. By the 1890 Census, Beaver Canyon had a population of 216; the settlement relocated to Spencer in 1897. The majority of Clark County was transferred to Fremont County when it was created in 1893 with the remaining territory being transferred in 1896. By the 1900 Census, 1,199 residents lived in the five precincts of Birch Creek, Kilgore, Medicine Lodge, Spencer.
At the 1910 census, the precincts contained 1,095 residents. Dry Creek was renamed Dubois in 1892 and incorporated prior to 1920 while Spencer was incorporated in 1947; the county was established 100 years ago in 1919, partitioned from Fremont County by the state legislature. It was named for state senator Sam K. Clark, an early pioneer on Medicine Lodge Creek in the upper Snake River valley. According to the U. S. Census Bureau, the county has a total area of 1,765 square miles, of which 1,764 square miles is land and 1.0 square mile is water. The northern border of the county is the Bitterroot Range of the Rocky Mountains, which forms the state line with Montana and is the continental divide, it is crossed by Interstate 15 over Monida Pass at 6,820 feet above sea level. Monida Pass marks an east-west divide between Bitterroot subranges: the Beaverhead Mountains are to the west and the Centennial Mountains are to the east. Lemhi County – west Butte County – southwest Jefferson County – south Fremont County – east Beaverhead County, Montana – north Interstate 15 – Monida Pass SH-22 Caribou-Targhee National Forest Nez Perce National Historical Park Salmon-Challis National Forest As of the census of 2000, there were 1,022 people, 340 households, 257 families residing in the county.
The population density was 1 person per square mile. There were 521 housing units at an average density of 0 per square mile; the racial makeup of the county was 74.17% White, 0.10% Black or African American, 0.98% Native American, 0.20% Asian, 0.10% Pacific Islander, 23.48% from other races, 0.98% from two or more races. 34.25% of the population were Hispanic or Latino of any race. 14.3% were of English, 8.1% German and 5.8% Irish ancestry according to Census 2000. There were 340 households out of which 45.00% had children under the age of 18 living with them, 61.80% were married couples living together, 7.10% had a female householder with no husband present, 24.40% were non-families. 20.00% of all households were made up of individuals and 8.50% had someone living alone, 65 years of age or older. The average household size was 3.01 and the average family size was 3.52. In the county, the population was spread out with 35.20% under the age of 18, 8.00% from 18 to 24, 27.50% from 25 to 44, 20.10% from 45 to 64, 9.20% who were 65 years of age or older.
The median age was 31 years. For every 100 females there were 110.70 males. For every 100 females age 18 and over, there were 112.20 males. The median income for a household in the county was $31,576, the median income for a family was $31,534. Males had a median income of $23,854 versus $20,192 for females; the per capita income for the county was $11,141. About 18.70% of families and 19.90% of the population were below the poverty line, including 24.10% of those under age 18 and 11.70% of those age 65 or over. As of the 2010 United States Census, there were 982 people, 345 households, 243 families residing in the county; the population density was 0.6 inhabitants per square mile. There were 531 housing units at an average density of 0.3 per square mile. The racial makeup of the county was 72.4% white, 1.0% American Indian, 0.7% black or African American, 0.5% Asian, 23.8% from other races, 1.5% from two or more races. Those of Hispanic or Latino origin made up 40.5% of the population. In terms of ancestry, 14.8% were English, 7.4% were German, 6.5% were American.
Of the 345 households, 37.7% had children under the age of 18 living with them, 57.4% were married couples living together, 7.0% had a female householder with no husband present, 29.6% were non-families, 24.3% of all households were made up of individuals. The average household size was 2.84 and the average family size was 3.41. The median age was 32.7 years. The median income for a household in the county was $40,909 and the median income for a family was $37,656. Males had a median income of $32,895 versus $24,125 for females; the per capita income for the county was $19,737. About 8.7% of families and 11.3% of the population were below the poverty line, including 21.5% of those under age 18 and 5.9% of those age 65 or over. The public schools in the county are operated by Clark County School District #161, headquartered in Dubois. Clark County High School competes in athletics in the Rocky Mountain Conference in IHSAA 1A Division II. Dubois Spencer Humphrey Kilgore Clark County has participated in every
Malad City, Idaho
Malad City is the only city in Oneida County, United States. Its population was 2,095 at the 2010 census, down from 2,158 in 2000; the city is named after the nearby Malad River, the name being French for "sickly". Malad City is located along Interstate 15 on the east side of the Malad Valley 13 miles from the Utah/Idaho border. Established in 1864, Malad is one of the oldest communities in the state of Idaho; the community received its name from Donald Mackenzie, a Scottish-Canadian trapper, who passed through the valley between 1818 and 1821 with a party of trappers. Some of his men became sick while camped here and, believing that the illness was caused by drinking water from the valley's principal stream, he named it "Malade" meaning sick or bad in the French language; the water had nothing to do with the men's illness, as it was learned by the second party led by Jim Bridger between 1832 and 1835. The men had most eaten some beaver that fed on the poisonous roots of "Water Hemlock" trees that put a occurring "cicutoxin" into the animals' flesh.
The beaver would have been immune to the poison because of long-term adaptation, but the trappers suffered from their feast. Native tribes avoided this outcome by altering food preparation methods to include boiling, which deactivated the poison. Malad began as a Welsh Mormon settlement whose settlers brought their Welsh traditions with them. In addition to the Mormon majority, some of the leading families in the community belonged to either the Presbyterian Church or the Reorganized Church of Jesus Christ of Latter Day Saints; these two denominations each built a place of worship in the town. Some of the minutes from early town meetings were taken down in both Welsh; the city is proud of its Welsh heritage. Malad lays claim to having more people of Welsh descent per capita than anywhere outside Wales. Malad celebrated its Welsh heritage by holding an annual “eisteddfod”, patterned after the music and poetry contests held in Wales for over 900 years; the eisteddfod was an all-day event with people coming from all over southeastern Idaho.
The event featured music and storytelling of Wales. The custom continued until 1916 and the American entry into World War I. With the goal of renewing the old eisteddfod tradition in Malad, in 2004, the annual Malad Valley Welsh Festival was established. In the summer of 1843 John C. Fremont and his party of 39 men passed the spot. Mormon prophet Brigham Young came through the Malad Valley in 1855. In 1856, at his request, Utahn members of The Church of Jesus Christ of Latter-day Saints migrated to the region; this party of 15 families led by Ezra Barnard traveled to the Malad Valley and established a community by the name of Fort Stuart. The following year in 1857, Fort Stuart was renamed Malad City. A post office was set up in 1865. By 1886 Malad City was the fastest growing village in eastern Idaho; the city was an important commercial center between Butte, Montana. In 1906, the railroad reached Malad City, allowing travel to Salt Lake City in only a four-hour ride by rail; the population of the city would double over the next 15 years as a result.
On June 19, 1910 Malad experienced a flood when the earthen Deep Creek Dam, northeast of the city, broke. On March 27, 1975 a magnitude 6.1 earthquake shook the Pocatello Valley near the Idaho-Utah border. The epicenter was only 15 miles southwest of Malad City, hit hardest by the quake. Nearly ⅔ of its homes and businesses had some sort of damage. Malad City received national news coverage when a corporate jet carrying eight people including four Coca-Cola executives crashed January 15, 1996 killing all on board; the large twin-engine turbo-prop was flying from Salt Lake City, Utah to Pocatello, Idaho for a Coca-Cola sales meeting. The Mitsubishi MU-2 aircraft burned at the base of a canyon 8 miles northwest of Malad. According to the National Transportation Safety Board in its published SEA96MA043 Accident Report, the cause of the accident was listed as ice on the wings. Towards the end of 2003, a nationwide influenza outbreak occurred. Malad was the hardest hit community in the nation. So many people became ill during the first part of December, 2003 that the city was shut down.
The entire school district in Malad was closed for three days in an effort to keep students from spreading the ailment. A third of the students became ill. Church services and Christmas festivities were cancelled. Malad City has the oldest department store in the state of Idaho. Evans Co-op is still in business today. Malad City has the longest running weekly newspaper in Idaho, called "The Idaho Enterprise" which published its first issue on June 6, 1879; because of its proximity to Utah, which has no state lottery, Malad has become a major retail site for the Idaho Lottery. The Top Stop Gasoline and Convenience store in Malad is responsible for 3 percent of Idaho's lottery sales, the town as a whole accounts for over 19 percent of state sales. Only Boise, the state's largest city, has higher lotto sales. Over the 22-year history of the Idaho Lottery, it is estimated that Utahns have provided $54.1 million in lottery profits, which Idaho uses for its own capital works and school funding. According to the United States Census Bureau, the city has a total area of 1.66 square miles, all of it land.
It lies on the eastern edge of Malad Valley at 4,540 feet in elevation. Days per year with predominate sun: 203 Days per year with some precipitation: 97The Wasatch fault runs along the east side of Malad Valley, there are several active faults in the area to the south and west
Monida Pass is a high mountain pass in the Rocky Mountains of the northwestern United States, at an elevation of 6820 ft above sea level on the Union Pacific Railroad and 6870 ft on adjacent Interstate 15. On the Continental Divide in the Bitterroot Range, it marks the transition between the Beaverhead Mountains and the Centennial Mountains, its name is derived from the states" - ida" from Idaho. The pass forms part of the border between eastern Idaho and southwestern Montana, is between the towns of Spencer in Clark County and Lima in Beaverhead County. On the Idaho side is Beaver Creek running through Beaver Canyon, the route of the Utah and Northern Railway in 1880 and is still used by Union Pacific. Union Pacific once had an icemaking plant at Humphrey, now a ghost town, its elevation is 6780 ft, 90 ft below the pass on I-15. In the late 19th century, stagecoaches ferried tourists from the railroad at Monida Pass to Yellowstone National Park, until UP built a branch line to the park over Reas Pass.
Interstate 15, the "Veterans Memorial Highway," starts in Montana at the Idaho border at Monida Pass and runs north to the international boundary with Canada at Sweetgrass. Mountain passes in Montana Montana Dept. of Transportation - webcam - Monida Pass