The Blackfoot Mountains and two subranges, the Chesterfield Range and the Ninety Percent Range, form a group of barren ridges that trend from northwest to southeast for more than 50 miles between Idaho Falls and Soda Springs. The range’s western slopes climb roughly 2,400 feet above the Snake River, but the eastern slopes rise only 600 feet above the Willow … Continue reading
The Bitterroot Mountains are covered in the book on Pages 82-94. Please check those pages for additional information. The Bitterroot Mountains are a group of mountains primarily created by mapmakers and not by fault-blocking or granitic intrusions. The mapmakers’ creation combines parts of the Coeur d’Alene and Clearwater Mountains to form a long narrow grouping stretching south from Lake Pend … Continue reading
The Lost River Range is covered in the book on Pages 265-295. All of the Lost River Range peaks covered by this website can be found at this link: Lost River Range Updates. The Lost River Range stretches 70 miles from northwest to southeast between Challis, ID and Arco, ID. The Big Lost River Valley and Salmon River flank the … Continue reading
The Sheep Mountain Range is located northeast of the town of Headquarters and is situated inside a major bend in the North Fork of the Clearwater River northeast of Headquarters, Idaho. It is unclear why this section of the Clearwater Mountains was given a name. Geographically and geologically, its terrain is no different than the surrounding Clearwater terrain. This subrange … Continue reading
The Shoshone Range is a small, forested subrange which is tucked into the West Side of the Bitterroot Mountains northeast of Kellogg. This small, north-to-south trending range is roughly 12 miles long and 5 miles wide. It is separated from the Coeur d’Alene Mountains on the west by the Coeur d’Alene River and from the Bitterroots by Big Creek and … Continue reading
The name North Promontory Range is sometimes used to identify the southern end of the Malad Range. The name is found on the BLM’s Malad City land status map but not the USGS quadrangles. This range is discussed in the book on pages 357 and 358. Since the name appears to have been abandoned this area will be covered as … Continue reading