"This hike follows the Pacific Crest Trail 2000 through a pristine forest of fragrant Douglas and alpine fir, blue spruce, and mountain hemlock to the base of 7,841-foot Three Fingered Jack, an eroded remnant of an ancient volcanic plug. The plug itself is impressive; if you have climbing experience and the appropriate gear, you may be tempted to continue up its south ridge to the summit.
The ragged spires of Three Fingered Jack—named in honor of Joaquin Murietta, an aspiring gold rusher with a mutilated, three-fingered hand—rise abruptly out of central Oregon’s Mount Jefferson Wilderness to form a geologic slice of time. Hundreds of thousands of years ago, the mountain—formed by hot basaltic lava flows—resembled a broad, dome-shaped cone. Today the formation is what geologists call a shield volcano. To view this decaying volcano for yourself, walk to its base on the Pacific Crest Trail 2000. The trail, which tends to be very dusty because of the area’s soft volcanic soil, starts out fairly gently as it passes through a forest of Douglas and alpine fir, blue spruce, and mountain hemlock."