Site of Blossom Rock Navigation Trees

Site of Blossom Rock Navigation Trees (HM17T5)

Location: Oakland, CA 94619 Alameda County
Country: United States of America

N 37° 48.648', W 122° 10.471'

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Until at least 1851, redwood trees on this site were used as landmarks to avoid striking the treacherous submerged Blossom Rock in San Francisco Bay west of Yerba Buena Island. Although by 1855 the original stems had been logged, today's trees are sprouts from their stumps.

California Registered Historical Landmark No. 962

Plaque placed by the State Department of Parks and Recreation in cooperation with the East Bay Regional Park District, August 23, 1986.

HM NumberHM17T5
Marker Number962
Year Placed1986
Placed ByCalifornia State Department of Parks and Recreation and the East Bay Regional Parks District
Marker ConditionNo reports yet
Date Added Sunday, September 14th, 2014 at 2:26am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)10S E 572661 N 4185144
Decimal Degrees37.81080000, -122.17451667
Degrees and Decimal MinutesN 37° 48.648', W 122° 10.471'
Degrees, Minutes and Seconds37° 48' 38.88" N, 122° 10' 28.26" W
Driving DirectionsGoogle Maps
Area Code(s)510
Closest Postal AddressAt or near 10570 Skyline Blvd, Oakland CA 94619, US
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