Near Almo in Cassia County, Idaho — The American West (Mountains)
Of all of the wonders at the City of Rocks, the two peaks in front of you, called the Twin Sisters, stirred the greatest interest among passing emigrants. Many mentioned them in journals. Some sketched them, and in later years photographed them. After months crossing monotonous prairie to the east, the travelers found the Twin Sisters - sights to behold.
But while most emigrants saw the Twin Sisters as scenic wonders, few, if any, knew that they were geologic wonders as well. Though the "twins" look nearly identical, they are vastly different geologic formations, consisting of rocks formed many millions of years apart.
Erected by National Park Service, Idaho Department of Parks and Recreation.
Marker series. This marker is included in the California Trail marker series.
Location. 42° 1.614′ N, 113° 43.079′ W. Marker is near Almo, Idaho, in Cassia County. Marker is on Twin Sister Road (Road 3400 S) near Birch Creek Road, on Touch for map. Marker is in this post office area: Almo ID 83312, United States of America.
Other nearby markers. At least 8 other markers are within 4 miles of this marker, measured as the crow flies. Passing Through (here, next to this marker); California Trail - Trail Junction (approx. 0.4 miles away); Granite Pass (approx. 1.3 miles away); California Trail -- Pinnacle Pass (approx. 1.6 miles away); California Trail - Prairie Valley (approx. 2.4 miles away); Pinnacle Pass (approx. 2˝ miles away); A Pleasant Place (approx. 3.4 miles away); California Trail -- Silent City of Rocks (approx. 3.4 miles away). Touch for a list and map of all markers in Almo.
More about this marker. This marker is at the intersection of Twin Sister Road and the Salt Lake Alternate Trail.
Categories. • Natural Features • Roads & Vehicles •
Credits. This page was last revised on September 29, 2018. This page originally submitted on September 29, 2018, by Barry Swackhamer of San Jose, California. This page has been viewed 54 times since then. Photos: 1, 2, 3. submitted on September 29, 2018, by Barry Swackhamer of San Jose, California.