National Park Service

National Natural Landmarks Program






Annual NNL Photo Contest Now Open
NNL 50th Anniversary

For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.

NPS » Explore Nature » National Natural Landmarks Program

Trona Pinnacles

Trona Pinnacles
Trona Pinnacles

Trona Pinnacles is a relic landform from the Pleistocene containing unique formations of calcium carbonate known as "tufa".

Location: San Bernardino County, CA

Year designated: 1967

Acres: 688

Ownership: Federal

For additional information see:


← Back to NNL listing for CA.

← Back to listing of all states and territories.



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