"Rockbridge County (Va.)" . . "Virginia" . . . . "Blue Ridge Canal (Va.)" . . . . . . . . . . . "Maps"@en . . "Transportation maps"@en . . . . . . . "Manuscript maps"@en . . "A plan of James Riv. from the North Branch to the balcony falls exhibiting a comparison between the Pr. Engr's location & that substituted by the commissioner. drawn by C. Crozet, P.E. 1824"@en . . . . . . . . .