Showing 26 - 31 of 31 Records

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"Proposed Connection of the Portage Rail-Road with the Basin at Johnstown," n.d. (2 sections)
"Map and Profile of the Beaver Div. Pa, Canal. C. T. Whippo, Engr. Laid down by M. R. Stealey, Prinl Asst Engr & draftsman, July 1831." (2 sections)
[Plan for Improvements Around Columbia Basin], n.d. (1 section)
[Canal at Harrisburg showing Proposed Side Cut to River], n.d. Shows: Basin, Locks Nos. 4-5. (1 section)
[Plan of a Lock], n.d. (2 sections)
[Comparative Estimates for French Creek Division Dams Nos. 7-11, Plans Nos. 2-3], n.d. (1 section)
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Collection: Map Book Number 29, 1826-1833   Remove all