The Lamar River is a tributary of the Yellowstone River, approximately 40 miles (64 km) long, in northwestern Wyoming in the United States. The river is located entirely within Yellowstone National Park.
The Lamar River in 1998 showing trees burned in the 1988 wildfires
A black and gray female wolf on the roadway near the Lamar River bridge
A herd of bison and pronghorn in Lamar Valley
Lamar River, 1959
The Yellowstone River is a tributary of the Missouri River, approximately 692 miles (1,114 km) long, in the Western United States. Considered the principal tributary of upper Missouri, via its own tributaries it drains an area with headwaters across the mountains and high plains of southern Montana and northern Wyoming, and stretching east from the Rocky Mountains in the vicinity of Yellowstone National Park. It flows northeast to its confluence with the Missouri River on the North Dakota side of the border, about 25 miles west of present-day Williston.
Yellowstone Falls on the Yellowstone River in Yellowstone National Park
The river steamer Expansion on the Yellowstone River in Montana, 1907
Image: Yellowstone River Fishing Bridge 1959
Image: Black Canyon of the Yellowstone
