Pyramid Rock is a steep, sharply defined pillar in the Zuñi Mountains of western New Mexico near Gallup, rising 7,487 feet and standing out as a prominent landmark visible from Interstate 40. Its summit climbs about 700 feet in a quarter mile, and a 3.4-mile round-trip trail leads to the top for views of the surrounding high-desert landscape. The formation takes its name from its pyramid-like shape, a name officially adopted by the United States Board on Geographic Names. Geologically, it is part of the Morrison Formation from the Late Jurassic, above older sedimentary layers, and it stands in a cool semiarid climate with summer thunderstorms, winter snow, and drainage toward the Puerco River.