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Kilbourne Hole

Kilbourne Hole
Kilbourne Hole

Kilbourne Hole is an example of an uncommon volcanic feature known as a maar. A maar is a depression caused by a volcanic explosion that emits little volcanic material except gas. Additionally, the olivine and enstatite inclusions have been used in studies of the upper mantle.

Location: Dona Ana County, NM

Year designated: 1975

Acres: 5,473

Ownership: Federal

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Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.

Last Updated: June 28, 2012