Geologic Event / Southeast Idaho
Red Rock Pass
Red Rock Pass marks the outlet of ancient Lake Bonneville, whose catastrophic flood helped shape the Snake River landscape.
- Category
- Geologic Event
- Era
- Ancient Lake Bonneville
- Coordinates
- 42.3544, -112.0498
Map
Map locations are for illustrative planning only. Check the original source records, posted signs, land ownership, closures, and current conditions before visiting.
Why It Matters
It is one of those quiet roadside places connected to an enormous geologic event.
Marker record title: Red Rock Pass.
- Marker Number
- 171
Source: Idaho Transportation Department Historical Marker Hub. This page summarizes public marker data and adds editorial context.
Nearby records
Other Idaho Points of Interest
Primary source: Idaho Transportation Department Historical Marker Hub.