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"A Map and Profile For a Slack Water Navigation Along the Ohio River From Pittsburgh to Beaver as Examined in 1828 by Edward F. Gay, Engineer." (14 sections)
- Date: 1828
- Name of creator(s): Land Office
- Forms Part of: [Series RG-017-YBCC-452] Map Books 1810-1881, undated
- Item
Map Book 6 Index
- Name of creator(s): Land Office
- Forms Part of: [Series RG-017-YBCC-452] Map Books 1810-1881, undated
- Item