Olema Lime Kilns

Welcome to the Olema Lime Kilns at Point Reyes National Seashore in California! This historic site is a must-see for anyone interested in the Gold Rush era and the lime-producing industry in Marin County. The kilns were built in 1850 by James A. Shorb and William F. Mercer, two San Francisco entrepreneurs who leased the land from Mexican grantee Rafael Garcia. Despite their efforts, the kilns were reportedly fired only a few times and have been abandoned for over 140 years. It is believed that they were abandoned no later than 1855 due to the poor quality of limestone deposits and the financial depression of that year. Today, visitors can explore the three long-abandoned, barrel-shaped stone vaults that lie in ruins against a hillside on the east side of Olema Creek. They are located about five miles south of Olema and about 100 yards west of California State Highway 1. 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. Use of firebrick as a lining at the back suggest treatment for higher temperature there. The outer casing, rectangular in shape, was also built of cut limestone. Between the inner and out casings is a filling composed of irregular chunks of limestone set in mud or clay mortar. While Kiln No. 1 was loaded with limestone when it was abandoned, it was never fired, making it impossible to measure its interior. However, the other two kilns provide an excellent example of the technology used during the Gold Rush era to produce lime. Visitors to the Olema Lime Kilns can take a self-guided tour of the site and learn about the history of the lime-producing industry in Marin County. The site is open year-round and admission is free. In addition to exploring the kilns, visitors can also enjoy the natural beauty of Point Reyes National Seashore. The park offers hiking trails, beaches, and stunning views of the Pacific Ocean. We hope you enjoy your visit to the Olema Lime Kilns and Point Reyes National Seashore!

Location: California

Source: Wikimedia