Marble Mountain Fossil Bed contains one of the classic Cambrian trilobite fossil sites within the Western United States. The Marble Mountain Fossil Beds lie in a beautiful shale formation that is 60-feet thick and over 550 million years old.

The Cadiz Trilobite Quarry, also called the Marble Mountain Rock Collecting Area, is a small area with outcrops of fossil-bearing shale southeast of the ghost town of Cadiz. Trilobites here occur in the Latham Shale, a greenish to brownish shale dating from the lower Cambrian (about 518 mya).

MARBLE MOUNTAINS TRILOBITE FOSSIL COLLECTION. Casual Collection of common invertebrate fossils is allowed in Mojave Trails National Monument, including the Marble Mountains, as defined under the Paleontological Resources Preservation Act of 2009 (PRPA). • The term `Casual Collection' means the collecting of a ‘reasonable’ amount of

This website is dedicated to the amateur rockhound who is interested in finding rock specimens for their collection. It includes information such as collecting locations that I've visited or that I've researched, and also information from other rockhounds.