Three Fingered Jack lies in the U.S. state of Oregon, in Linn and Jefferson counties. It has a volume of and a summit elevation of ,[a] with a proximal topographic relief of and a draping relief of .[b] Its jagged edifice rises between Mount Jefferson and the Three Sisters volcanic complex. Three Fingered Jack lies within the Mount Jefferson Wilderness and is not accessible by paved road, but can be approached by the Pacific Crest Trail. Located about northwest of the city of Sisters, it acts as a prominent landmark in the area.