An early examination of the region by Lt. W.C. Williams assisted by T.J. Lee, T. F. Drayton, C.W. Ward & H.C. Sill. The proposed route for the canal is traced from Bon Secour River (Mobile Bay) eastward to Pensacola Bay with terrific detail along the way. Locates and names Bay Lalande, Perdido River, Secour River, Inerarity Point, Garcon's Creek, Great Lagoon, Bayou Grande, Bayou Chico, Camp Clinch, and much more. Profiles of the several canals in the vicinity are shown at the upper left.
References: Claussen & Friis #26.
Issued folding with light scattered foxing, a short fold separation at top left, and a small chip and an adjacent 3" edge tear that has been closed on verso with archival tape.