Slump (geology)
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A slump is a form of mass wasting that occurs when a coherent mass of loosely consolidated materials or a rock layer moves a short distance down a slope. Movement is characterized by sliding along a c
Bentonite Clay along the valley of the Little Missouri River in Theodore Roosevelt National Park (North Unit)
The tilted mounds in slump formations formed when the streams that cut into the cliffs over-steepened them. Heavy Moisture led to land slides of blocks of overhanging earth. Thus the slumps retained their original layering sequence
Thistle, Utah
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Thistle is a ghost town in Spanish Fork Canyon in southeastern Utah County, Utah, United States. During the era of steam locomotives, the town's primary industry was servicing trains for the Denver an
Slump (geology)
…The slump that destroyed Thistle, Utah, by creating an earthen dam that flooded the area Bentonite Clay along the valley of the Little Missouri River in Theodore Roosevelt National Park…
Remnants of the Thistle schoolhouse, September 2006
Thistle around 1871
Aerial photo of the Thistle area in spring 1983 showing the dam formed by the landslide, "Lake Thistle" over the submerged town, and the construction to re-route US-6, US-89, and the D&RGW around the landslide area
Looking northwest from the view area along US-6/US-89 showing the abandoned railroad and highway grades next to the replacement alignments, June 2010