Mount Jefferson, Stratovolcano in Cascade Range, Oregon, US
Mount Jefferson rises to an elevation of 10,497 feet, making it the second highest mountain peak in Oregon's Cascade Volcanic Arc formation.
Formed about 730,000 years ago by subduction of the Juan de Fuca Plate, Mount Jefferson was named on 30 March 1806 by Lewis and Clark after President Thomas Jefferson. The name was replaced by Mount Vancouver on an 1838 Hudson's Bay Company map and officially restored in 1859. E. C. Cross and R. L. Farmer made the first ascent in 1888.
The mountain received its name from the Lewis and Clark Expedition in 1806 as a tribute to President Thomas Jefferson of the United States.
Access requires hiking from trailheads on the western slopes, with most routes involving several hours of walking through forested terrain before reaching alpine zones. Conditions vary throughout the year, and snow often lingers into summer months on higher elevations.
The summit pinnacle is the most technically demanding climb in the Cascades, which is why the mountain stayed relatively isolated even after E. C. Cross and R. L. Farmer reached the top in 1888. Its Native American name, Seekseekqua, refers to a spirit.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 93,861 contributors worldwide.
