Collection: Osher Collection
Name: Map of Portland Harbor. Maine Surveyed under the direction of Lt. Col. John Anderson, U.S. Top. Engineer. Drawn by Lieut. B. Poole, 3d Artillery 1833
Barcode:
Image Number:
Creator:
Printmaker:
From Atlas:
Publishing Location:
Notes: Note: "Engraved by J.V. N. Throop, D.C." From: Report of the survey of Stanford's Ledge, Portland Harbor, Maine, 1832, Congressional Series 259 (23rd Congress, 1st Session) House DocumentIncludes islands, points, coves and other landmarks: Foul Ground; Simonton Cove; Stoney Point; Fort Preble; Black Buoy; Cumming's Point; Stanford's Ledge; Red Buoy; Cumberland and Oxford Canal; Middle Ground; Mount Joy; Back Cove; Presumpscot River; Hog Island Ledge; Little Hog Island; Great Hog Island; House Island; Peakes Island; Banges Island.
Brief Description:
Physical Description:
Surveyor:
Date/Date Range Produced:
Date/Date Range Published:
Language:
Region Depicted:
Map Type:
Dimensions: H 48.4 x W 55.9 cm
Printing Process:
Printing Technique:
Material Type:
Historical Context: By 1833 sufficient soundings taken in Portland harbor enabled the cartographer of this large-scale chart to create a topographic map of the sea bottom. Isobars--lines connecting equal depth-- give the navigator a comprehensive description of what he will encounter on all routes and points of sailing. As a further aid, the position of buoys are shown, to warn the navigator of danger. Depths are indicated in fathoms at low water. Strong winds, however, can augment or diminish these soundings. A graphic depiction of the effect of wind on the tide is shown in the lower left corner of the chart.
LC Call Number: TC203 .P55 .P8 1833
OCLC: 55520526
Donor:
Subjects:
Permanent URL:
