USGS Peak, Mountain summit in Lost River Range, Idaho.
USGS Peak is a mountain summit in the Lost River Range that rises to approximately 11,982 feet. Its steep limestone walls and dramatic rock formations make it one of the most distinctive peaks in the central Idaho wilderness.
The peak was named and measured by the United States Geological Survey during the early 1900s, when initial height recordings required later adjustment. This reflects how surveying methods and accuracy improved over time in the remote mountain regions.
Local farmers from the region documented the peak's limited early ascents, with Tom Lopez and D. Hanson completing the first recorded North Face climb.
The standard route involves a multi-mile hike with significant elevation gain that requires climbing experience and good physical fitness to complete. Summer months provide the safest and most accessible conditions for attempting the climb.
The summit features two USGS benchmarks that were installed as reference points for surveyors. These markers remain visible today and serve as reminders of the early mapping efforts in this remote area.
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