Fredonyer Pass, Mountain pass in Lassen County, California, US.
Fredonyer Pass is a mountain pass in California's Lassen County that carries State Route 36 across rugged terrain. The road climbs through steep grades and rocky landscapes, serving as an important link between isolated communities on either side of the ridge.
The pass was discovered in 1850 by Dr. Atlas Fredonyer during the height of California's Gold Rush. Its discovery opened a crucial route for prospectors and settlers moving through the Sierra Nevada and Cascade regions.
The pass marks the transition point between the Sierra Nevada mountain range and the Cascade mountains, representing California's diverse geological formations.
State Route 36 through the pass remains open year-round, though winter storms can cause temporary closures when conditions become hazardous. Drivers should be ready for steep grades and exercise caution during poor weather.
The route crosses a transition zone between two major mountain ranges where the landscape and geology noticeably shift. This boundary makes the pass a natural dividing line between two distinctly different alpine environments.
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