The Olema Lime Kilns at Point Reyes National Seashore in California were built in 1850 on land leased from Mexican grantee Rafael Garcia by James A. Shorb and William F. Mercer, two San Francisco entrepreneurs.

They were apparently abandoned no later than 1855 after only a few firings, probably due to the poor quality, small limestone deposits and the financial depression of that year.

[3] They represent a Gold Rush era effort to establish a lime-producing industry in Marin County, only two years after cession of Alta California to the United States by Mexico.

The kiln on the south was built of gray limestone which on the interior of the barrel was cut and fitted to enable application of a smooth coating of fireclay and, running halfway around the back, firebrick.

Between the inner and out casings is afilling composed of irregular chunks of limestone set in mud or clay mortar.

At an undetermined date before 1940 the entire arched entrance to this kiln was removed and rebuilt in Bolinas as part of a barbecue pit.