Indian Rock

Indian Rock (HM10F2)

Location: Berkeley, CA 94707 Alameda County
Country: United States of America

N 37° 53.542', W 122° 16.356'

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Berkeley History

Outcroppings of weathered rock are a prominent feature of the Berkeley Hills, providing evidence of this area's complex geological past. Composed of Northbrae rhyolite, Indian Rock is an ancient volcanic remnant. Native Ohlone communities gathered at these outcroppings. Here they ground acorns into meal with stone pestles, eventually wearing bowl-like depressions in the rock.

In the early 20th century the Mason-McDuffie Real Estate Company developed the surrounding Northbrae subdivision. In 1917 the company donated park parcels around five rock formations, including Indian Rock, to the City of Berkeley. During the 1930s, here and at nearby Cragmont Rock, Berkeley mountaineering enthusiasts practiced new techniques that revolutionized the sport. As a young man, environmentalist and Berkeley native David Brower was among those who climbed here.
HM NumberHM10F2
Year Placed2003
Placed ByBerkeley Historical Plaque Project
Marker ConditionNo reports yet
Date Added Tuesday, September 16th, 2014 at 10:38pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)10S E 563957 N 4194122
Decimal Degrees37.89236667, -122.27260000
Degrees and Decimal MinutesN 37° 53.542', W 122° 16.356'
Degrees, Minutes and Seconds37° 53' 32.52" N, 122° 16' 21.36" W
Driving DirectionsGoogle Maps
Area Code(s)510
Closest Postal AddressAt or near 931-943 Indian Rock Ave, Berkeley CA 94707, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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