In making the northern entrance, called Sausolito, keep the Fort and
the island of Yerba Buena in one; in coming from the south and making
the southern entrance, keep the island of Alcatrazes or Bird Island,
touching the Fort. After the Fort bear south per compass, steer due
east, (true) to avoid the flats which are making out from Belona’s
beach. No danger can be apprehended from Blossom Rock. In running into
this harbor after passing the Fort, and having it bearing (true) south,
good anchorage can be obtained from five and a half fathoms to three
fathoms. At present there are no buoys, but in the latter part of next
month there will be buoys on Blossom Rock, Anita Rock, on the shoals
on the N. N. W. part of the harbor, and on the bank making out from
Belona’s beach. High water at Yerba Buena or San Francisco full and
change 10 hours 34 minutes. Rise of spring tides 9 feet, neap tides 3
feet. Latitude of the Fort 37 deg. 48 min. 30 sec. N.; Longitude 122
deg. 27 min. 24 sec. W. Variation 15 deg. 36 min. E.
EDW. A. KING, _Harbor Master_.