Digital collections

Annual Report 1862. No. 3 A bis (Lower Sheet) Sketch A Shewing the progress ofthe Survey in Section No. 1 From 1844 to 1862. Sub-Sketch Showing the positionof Davis' Shoal discovered by the U.S. Coast Survey in 1846. Sub-Sketch Showingthe position of Phelps' Bank and Asia Rip surveyed in 1860. (Image credit: United States Coast Survey Annual Report 1862)