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Blossom Rock
Rock Hazard
in
Coast Ranges
in
San Francisco
,
CA
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On Wikipedia
Blossom Rock was a serious navigational hazard to sailing ships entering or leaving San Francisco Bay in the 19th century. It was formally reported by Captain F. Beechey of the Royal Navy ship HMS Blossom in 1827.The rock, named in honor of Beechey's ship, was located about halfway between Alcatraz Island and Yerba Buena Island, and about 1,000 yards (0.91 km) off the Port of San Francisco., p. 5. It was normally submerged about 5 feet (1.5 m) below mean low tide, so would not have been visible to the ship's captain or crew. Captain Beechey explained how sailors could avoid striking the rock by using two particularly prominent giant redwood trees on the east shore of the Bay to determine the exact location of their ships with respect to the rock.After the Navigation Trees were cut down in…
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