Near Salmon in Lemhi County, Idaho — The American West (Mountains)
Tower Rock: William Clark's “Clift”
The rocks, gravel, sand, clay and silt that eroded from the hills into streams accumulated and were cemented into layers, coarse conglomerate and sandstone you can see in the face of Tower Rock across the highway.
Clark's "dark brown flint" is actually Precambrian quartzite, some of the oldest rock in Idaho. It can be seen better at outcrops between here and North Fork.
This clift is of a reddish brown colour the rocks which fall from it is a dark brown flint tinged with that Colour. Some Gullies of white Sand Stone and sand fine & as white as snow." - William Clark, August 21, 1805
Erected by Bureau of Land Management.
Marker series. This marker is included in the Lewis & Clark Expedition marker series.
Location. 45° 18.69′ N, 113° 54.396′ W. Marker is near Salmon, Idaho, in Lemhi County. Marker is on Casey Road (U.S. 93) near Tower Rock Road, on the left when traveling north. Touch for map. Marker is at or near this postal address: 849 Casey Road, Salmon ID 83467, United States of America.
Other nearby markers. William Clark's Campsite, August 21 and 25, 1805 (a few steps from this marker); Tower Creek (approx. 0.8 miles away); Historic Lemhi Co. (approx. 4.7 miles away); Fort Bonneville (approx. 4.7 miles away); Lewis and Clark (approx. 7.7 miles away); Salmon River Encounter (approx. 7.9 miles away); In Commemoration of Old Toby the Shoshone Indian (approx. 7.9 miles away); Hungry, Wet and Cold (approx. 9.9 miles away). Touch for a list and map of all markers in Salmon.
More about this marker. The marker is in the Tower Rock Recreation Site.
Categories. • Exploration • Landmarks •
Credits. This page was last revised on November 6, 2017. This page originally submitted on November 6, 2017, by Barry Swackhamer of San Jose, California. This page has been viewed 52 times since then. Photos: 1, 2. submitted on November 6, 2017, by Barry Swackhamer of San Jose, California.