Mount Jefferson is a stratovolcano in the Cascade Volcanic Arc, part of the Cascade Range in the U.S. state of Oregon. The second highest mountain in Oregon, it is situated within Linn County, Jeffers
South face of Mount Jefferson viewed from the north side of Three Fingered Jack
A view of Mount Jefferson from Russell Lake in 1934
A coniferous forest near Mount Jefferson (Jefferson visible in the background)
Three Fingered Jack is a summit of a shield volcano of the Cascade Range in the U.S. state of Oregon. Formed during the Pleistocene epoch, the mountain consists mainly of basaltic andesite lava and wa
Mount Jefferson (Oregon)
…including 40 miles (64 km) of the Pacific Crest National Scenic Trail. Mount Jefferson is the major feature of the wilderness, along with the nearby Three Fingered Jack volcano. Mount Jefferson lies in the temperate maritime climate of Western Oregon. The Cascades absorb east-moving moisture, causing warm and dry…
Southwest side of Three Fingered Jack seen from Pacific Crest Trail
The moraine-dammed lake in summer
A herd of mountain goats seen on the flank of Three Fingered Jack
Three Fingered Jack as seen from Santiam Lake