Three-Fingered Jack

Three-Fingered Jack is an extinct volcanic mountain in the Cascade Mountains, on the border of Linn County and Jefferson County. Situated within the Mt. Jefferson Wilderness Area and the Deschutes National Forest. The Pacific Crest National Scenic Trail crosses this peak north of McKenzie Pass/Santiam Pass and Cascade Lakes Highway. Bend and Redmond are the nearest major cities.

The volcano age probably lies between 0.50 and 0.25 million years.