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- Description:
- One navigational chart entitled "St. Lawrence River, Detail Sheet No. 6, From Galop Rapids to Point Iroquois." The title block near the top of the sheet indicates "Major C. B. Comstock, Corps of Engineers, U.S.A., in charge" and that the chart area was "Surveyed under the direction of Lieut. W. R. Livermore, Corps of Engineers, U.S.A." The chart was drawn at a scale of 1:10,000 and is printed in black ink on white paper. Survey information includes water depths in feet, depth contour lines, shoal and current notes, river bottom characteristics, shoreline details, towns, roads, property lines, north arrow, and survey triangulation points. The chart is dated 1871.
- Date Issued:
- 1901-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Collection:
- Maritime
- Description:
- One navigational chart entitled "St. Lawrence River, Detail Sheet No. 6, From Galop Rapids to Point Iroquois." The title block near the top of the sheet indicates "Major C. B. Comstock, Corps of Engineers, U.S.A., in charge" and that the chart area was "Surveyed under the direction of Lieut. W. R. Livermore, Corps of Engineers, U.S.A." The chart was drawn at a scale of 1:10,000 and is printed in black ink on white paper. Survey information includes water depths in feet, depth contour lines, shoal and current notes, river bottom characteristics, shoreline details, towns, roads, property lines, north arrow, and survey triangulation points. The chart is dated 1871.
- Date Issued:
- 1901-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
