Potomac River (in four sheets), Sheet No. 4 From Indian Head to Georgetown San Francisco Chamberlin Trimetric Projection

Chamberlin Trimetric Projection

and San Pablo Bay

bottom type

as an original work was something remarkable and uncommon in America

Potomac River (in four sheets), Sheet No. 4 From Indian Head to Georgetown San Francisco Chamberlin Trimetric ProjectionA very nice separately issued chart of Washington D. C., Georgetown, and a stretch of the Potomac River down to Indian Head. This is Sheet 4 only of a 4 sheet set. The chart shows nice detail of the major cities and immediate shores of the river. Aids and hazards to navigation, depth soundings in feet, tributaries, and other locations are given. Tidal, lighthouse information, and the Capitol Dome location are given in the chart's notes lower right.