Approximate location — plotted from published sources, not a site visit, and not a guarantee of access.
Nearly symmetrical cinder cone in the San Francisco Volcanic Field north of Flagstaff, with a dark basaltic lava flow extending south. Unlike the closed summit trails at nearby Sunset Crater Volcano NM, SP Crater is a classic scramble to the rim (~700 ft gain) via rough dirt roads—textbook cinder-cone morphology for desert geology fans.