General Chart of the Coast from Gay Head to Cape Henlopen (from a triogonometrical survey)

General Chart of the Coast from Gay Head to Cape Henlopen (from a triogonometrical survey). For an unfinished study of Ice Formation along Atlantic Coast. Note also tightening of contours at continental shelf break. This was the first nautical chart to show the rapid change in slope from the continental shelf to the continental slope at the “break.”

Photo Category: Coast and Geodetic Survey - Archive Nautical Chart - Seafloor Mapping - Climate
Photo Location: California, Gay Head to Henlopen
Photo Date: 1852