The Merriam Mountains are geologically composed primarily of igneous rocks formed during the Mid-Cretaceous period which began 145 Million years ago and ended 66 million years ago. The Merriam Mountain Range is home to coyotes, rabbits, rattlesnakes and a variety of common insect species. Fennel, an imported plant species native to Italy, can be found growing on some areas of the southern range. The Merriam Mountains are a mountain range in

San Diego County San Diego County (), officially the County of San Diego, is a county in the southwestern corner of the U.S. state of California. As of the 2020 census, the population was 3,298,634, making it California's second-most populous county and the f ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

References

{{reflist Mountain ranges of Southern California Mountain ranges of San Diego County, California