Miramar Mounds contains unique soil features called "mima mounds," which are found in only three or four locations in the country. The site also contains rare vernal pools that are found only in California.
Year designated: 1972
Please remember, National Natural Landmarks (NNLs) are not national parks. NNLs are owned by a variety of public and private entities and allowing visitation is at their discretion. Many NNL sites maintain public websites where additional information may be found.