Geographical data brought up to November 1875.; Relief shown by hachures.; "For the geographical positions of this map the compiler is principally indebted to the records of the U.S. Coast Survey ... and to the report of Capt. C.W. Raymond, U.S. Top. Eng."; Inset: Aleutian Islands. 53 x 75 centimeters Scale approximately 1:3,801,600 General Map Collection