Laguna Hills in Orange County, California — The American West (Pacific Coastal)

Fossil Reef

Photographed by Michael Kindig, July 7, 2008

1. Fossil Reef Marker

Inscription. Before you are the white limestone remains of an 18,000,000 year old tropical shell reef. Formed in a shallow bay, it contains fossils of scallops, clams, and tube worms. Mudstones of the same age, found nearby, held fossil whales and shark teeth. Later, as the Santa Ana Mountains rose, the rigid limestone buckled and broke along small faults. We can now see evidence that tropical seas once covered the spot where you stand.

Erected 1982 by Orange County Board of Supervisors and Orange County Historical Commission. Donated by AFCOM Development. (Marker Number 28.)

Topics. This historical marker is listed in this topic list: Paleontology.

Location. 33° 35.298′ N, 117° 42.337′ W. Marker is in Laguna Hills, California, in Orange County. It is on Via Lomas, on the left when traveling east. Touch for map. Marker is at or near this postal address: 25836 Via Lomas, Laguna Hills CA 92653, United States of America. Touch for directions.

Regionally, this marker is in Greater Los Angeles

and in the Peninsular Ranges.

It is also on the American Pacific Coast.

Globally, it is in North America,

on the Ring of Fire,

in the Pacific Rim,

in the Western Hemisphere,

in the Western World,

and in the Anglosphere.

Historically, it finds itself in what was once New Spain

and also Mexico’s Alta California.

Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies: Aliso Viejo Ranch (approx. 0.8 miles away); Costeau Pit (approx. 1.1 miles away); Juan Avila Adobe (approx. 1.4 miles away); Plaza de La Paz (approx. 1.4 miles away); Mixocetus Baleen Whale

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(approx. 1½ miles away); Mormon Battalion Marker (approx. 1½ miles away); Aliso Creek Adobes (approx. 1½ miles away); Sycamore Park (approx. 1.6 miles away). Touch for a list and map of all markers in Laguna Hills.

Photographed by Michael Kindig, July 7, 2008

2. Fossil Reef Marker

Credits. This page was last revised on March 13, 2017. It was originally submitted on November 29, 2011, by Michael Kindig of Elk Grove, California. This page has been viewed 1,318 times since then and 9 times this year. Last updated on March 13, 2017, by Jeanette Allan of Laguna Hills, California. Photos: 1, 2. submitted on November 29, 2011, by Michael Kindig of Elk Grove, California. • Syd Whittle was the editor who published this page.