S P Crater

S P Crater is a cinder cone volcano in the San Francisco volcanic field, 25 miles north of Flagstaff, Arizona. It is surrounded by other cinder cones, all of them older and more heavily eroded, and a well-defined lava flow extends 4.3 miles north from it. American astronauts have used the crater to train for moonwalking.

Where it is

S P Crater is a natural landmark near Flagstaff, in Coconino County. It is one of the natural landmarks in this database, and appears in the statewide ranking of Arizona attractions.

How this ranking was reached

No official visitor count is published for S P Crater, so its score rests on public interest and tourism significance, and is capped below the level a measured attraction can reach. That is why the medium confidence above is not higher. The weighting is explained in full on the methodology page, and every axis is broken out under Facts and sources at the foot of this page.

Note on the data: No official visitor count is published for this attraction.

Sources

• Public interest: Wikimedia pageviews (en.wikipedia, human traffic), 2024
• Coordinates and designations: Wikidata(opens in a new tab)
• County: U.S. Census geography via FCC Area API, resolved from coordinates

Record last verified 2026-08-12.