Fossil Reef

Fossil Reef (HMXRJ)

Location: Laguna Hills, CA 92653 Orange County
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Country: United States of America
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N 33° 35.298', W 117° 42.337'

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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.
Marker Number28
Year Placed1982
Placed ByOrange County Board of Supervisors and Orange County Historical Commission. Donated by AFCOM Development
Marker ConditionNo reports yet
Date Added Wednesday, September 3rd, 2014 at 1:59pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)11S E 434524 N 3716732
Decimal Degrees33.58830000, -117.70561667
Degrees and Decimal MinutesN 33° 35.298', W 117° 42.337'
Degrees, Minutes and Seconds33° 35' 17.88" N, 117° 42' 20.22" W
Driving DirectionsGoogle Maps
Area Code(s)714, 949, 619
Closest Postal AddressAt or near 25873-25879 Via Lomas, Laguna Hills CA 92653, US
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