"Currents in Bering Sea and Adjacent Waters" by W. H. Dall, Assistant USC&GS. This early oceanographic map also showed the limits of ice in 1871 and 1877.

Western half of hand-colored bathymetric map of the Caribbean Sea based on soundings of the C&GS Steamer BLAKE under the command of Commander John R. Bartlett.

Eastern half of hand-colored bathymetric map of the Caribbean Sea based on soundings of the C&GS Steamer BLAKE under the command of Commander John R. Bartlett.

Title block to bathymetric map of the West India Islands and Caribbean Sea by E. Willenbucher of the Coast and Geodetic Survey. Soundings acquired on the C&GS steamer BLAKE under the command of Commander John R. Bartlett, USN.

Title block to Investigation of the Oyster Beds off Pungoteague Creek, Virginia. Surveyed in Schooner PALINURUS by Gershom Bradford, Assistant. The Coast and Geodetic Survey accomplished many surveys of oyster beds between the early 1870' s and early 1900's for both the Commissioner of Fish and Fisheries and for state agencies.

Title block to Investigation of the Oyster Beds off Pungoteague Creek, Virginia. Surveyed in Schooner PALINURUS by Gershom Bradford, Assistant. The Coast and Geodetic Survey accomplished many surveys of oyster beds between the early 1870' s and early 1900's for both the Commissioner of Fish and Fisheries and for state agencies.

Sketch showing changes in shoreline in the vicinity of Rockaway Inlet between 1835 and 1877.

Topographic survey of the site of the new Naval Observatory by Charles Junken of the Coast and Geodetic Survey. This was surveyed at the request of Rear Admira l John Rodgers, USN. An example of Navy-Coast Survey cooperation during this era. The C&GS also surveyed the circle surrounding the observatory at this time.

Note establishing contour interval and mean high water of Potomac River as vertical datum for elevations.

Gulf of Mexico portion of Chart of Atlantic Ocean by A. Lindenkohl 1882. Showing Gulf Stream, Currents, Surface and Bottom Temperatures and Soundings. This bathymetric map details much of the work of the C&GS Steamer BLAKE and is among the earliest detailed maps of a continental margin.

Title block to Chart of Atlantic Ocean by A. Lindenkohl 1882. Showing Gulf Stream, Currents, Surface and Bottom Temperatures and Soundings. This bathymetric map details much of the work of the C&GS Steamer BLAKE and is among the earliest detailed maps of a continental margin.

Eastern Caribbean portion of Chart of Atlantic Ocean by A. Lindenkohl 1882. Showing Gulf Stream, Currents, Surface and Bottom Temperatures and Soundings. This bathymetric map details much of the work of the C&GS Steamer BLAKE and is among the earliest detailed maps of a continental margin. Note Puerto Rico Trenc h. This is perhaps the earliest correct depiction of a trench.

Bahamas portion of Chart of Atlantic Ocean by A. Lindenkohl 1882. Showing Gulf Stream, Currents, Surface and Bottom Temperatures and Soundings. This bathymetric map details much of the work of the C&GS Steamer BLAKE and is among the earliest detailed maps of a continental margin. Note Puerto Rico Trenc h and Blake Plateau. This is perhaps the earliest correct depiction of a trench.

Mid-Atlantic portion of Chart of Atlantic Ocean by A. Lindenkohl 1882. Showing Gulf Stream, Currents, Surface and Bottom Temperatures and Soundings. This bathymetric map details much of the work of the C&GS Steamer BLAKE and is among the earliest detailed maps of a continental margin. Note uuper reaches of Hudson Canyon south of Long Island.

Chart of Atlantic Coast from Cape Sable to Cape Hatteras. This particular chart was used to compare soundings from the Coast and Geodetic Survey Steamer BLAKE with those of the newly commissioned Fish Commission Steamer ALBATROSS. All soundings in brown were obtained by the ALBATROSS on what must have been one of its earliest cruises.

Topographic map of the United States Military Academy at West Point by W. C. Hodgkins under the direction of Henry Whiting.

Lake Champlain Sheet No. 4 from Cole's Bay to Whitehall. An example of inland charting by the Coast and Geodetic Survey.

Rough draft showing continental slope profiles of part of Chart of Atlantic Ocean by A. Lindenkohl. This survey was conducted by the Coast and Geodetic Survey Steamer BLAKE and shows the discovery of the Blake Plateau north of the Bahama Islands and south of Cape Hatteras.

Southern half of rough draft of Chart of Atlantic Ocean by A. Lindenkohl. This survey was conducted by the Coast and Geodetic Survey Steamer BLAKE and shows the discovery of the Blake Plateau north of the Bahama Islands and south of Cape Hatteras.

Northern half of rough draft of Chart of Atlantic Ocean by A. Lindenkohl. This survey was conducted by the Coast and Geodetic Survey Steamer BLAKE. Note Hudson Canyon south of Long Island, the head of Norfolk Canyon off the Virginia Capes, and the various profiles of the continental slope.

Rough draft of Gulf of Mexico showing depth profiles along various lines with both surface temperatures and bottom temperatures plotted in degrees Fahrenheit.

Coastal views of Morro Rock, Point Esteros, and the coast above Point Esteros. All were sketched by Ferdinand Westdahl of the U.S. Coast and Geodetic Survey.

Coastal views of Cayucos Landing, Point Esteros from the north, Point Piedras Blancas, and San Simeon. Sketched by Ferdinand Westdahl of the U.S. Coast and Geodetic Survey.

Coastal views of Point Piedras Blancas to the NW 3 miles and to the NNE 1/3 mile . The second view is a particularly good sketch of the Point Piedras Blancas Lighthouse. Sketched by Ferdinand Westdahl of the U.S. Coast and Geodetic Survey.

Coastal View of Pine Mountain and Rocky Butte, north of San Simeon. Sketched by Ferdinand Westdahl of the U. S. Coast and Geodetic Survey.

Coastal view of mountains south and east of Monterey Bay. The mountains north of the Salinas Valley are to the east while the mountains to the right of Salinas Valley are to the south.

Coastal views of the terraces north of Point Santa Cruz and south of Point El Jarro, in the vicinity of present day Davenport. The lower view is looking NW by W to Point Ano Nuevo and island. Sketched by Ferdinand Westdahl of the U.S. Coast and Geodetic Survey.

Coastal views of Sand Bluff Point and Sail Rock Point (just north of north entrance to Monterey Bay) and Pigeon Point. Sketched by Ferdinand Westdahl, U.S. Coast and Geodetic Survey.

Coastal views of Pigeon Point looking towards Point Ano Nuevo and looking southeast from Point El Jarro towards Sand Bluff Point. Sketched by Ferdinand Westdahl, U.S. Coast and Geodetic Survey.

Three coastal views in Half Moon Bay area that include Gordon's Chute, Sail Rock , Pillar Point, and Point San Pedro Rock. Note mountains covered with high fog.

Coastal views of Point San Pedro, Montara Point, and Pillar Point south of San Francisco.

Coastal view of Point San Pedro and Montara Point.

Coastal view of Point San Pedro, Montara Mountain, and Montara Point.

Thirteen coastal views between Point Ano Nuevo and Point San Pedro. These views are north of Santa Cruz and south of San Francisco.

Coastal view of Fire Island Lighthouse from sea. Probably sketched by John Farley. From chart "Part of the Southern Coast of Long Island."

Four coastal views including views from Point Esteros to Point Piedras Blancas and views of the mountains south and east of Monterey Bay. These views include Point Piedras Blancas lighthouse, Pine Mountain, Rocky Butte, Point San Simeon, Pajaro Valley, Salinas Valley, Point Cypress, and although not identified as such, the Santa Cruz Mountains and Santa Lucia Mountains.

Map showing soundings taken by Coast and Geodetic Survey Steamer BLAKE. Plotted by W.C.W. (W. C. Willenbucher) . This sheet includes plotted depths, surface and bottom temperatures, and various profiles of the continental shelf and slope . The Blake Plateau shows as a conspicuous widening of the continental slope in the 400 to 500 fathom range south of Cape Hatteras.

Nautical chart of the Potomac River from Indian Head to Georgetown.

Section of nautical chart of the Potomac River from Indian Head to Georgetown showing street plans of Washington, D.C., and Alexandria, Virginia. Note area SW of Washington Monument, site of today's Lincoln Memorial, Vietnam Memorial, and Reflecting Pool.

Section of nautical chart of the Potomac River from Indian Head to Georgetown showing street plans of Washington, D.C. Note area SW of Washington Monument, site of today's Lincoln Memorial, Vietnam Memorial, and Reflecting Pool. Analostan Island is now known as Roosevelt Island.

Title block of nautical chart of the Potomac River from Indian Head to Georgetown.

Nautical chart of Burlington Harbor, Vermont, on Lake Champlain.

Gulf Stream Explorations by the U.S. Coast Survey, a bathymetric survey based on the work of the U.S. Coast and Geodetic Survey Steamer BLAKE. Note the trench north of Puerto Rico, possibly the first correct delineation of a trench. Adolph Lindenkohl drafted the original version of this map.

Chart annotated with shipwreck information for vicinity of San Francisco Bay. Time-wise the shipwrecks described bracket the period from 1853 to 1883. Copy furnished the Supt. for use of Light House Board, Mar. 18/85.

Chart annotated with shipwreck information for vicinity of San Francisco Bay.

Chart annotated with shipwreck information for vicinity of San Francisco Bay.

Chart annotated with shipwreck information for area south of San Francisco Bay to Monterey Bay.

Views of Charleston Harbor including Charleston, Fort Sumter, and Moultrieville. Left half.

A magnificent view of Charleston from near Fort Ripley.

Nautical chart from Kasler's Point to Point Carmel, south of Monterey, northern half.