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Coast Geodetic Survey
Historical Maps
General
Maps
Title page of computation book of ' Triangles for the Survey of theCoast' made in 1817 by F.R. Hassler.
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(3.91 MB)
Field sketch of triangulation stations- ' North-Eastern view fromButtermilk Hill.'
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(3.54 MB)
Field sketch of New York City as seen from Staten Island.' North East view of the Horizon as seen from the fire Signal on Staten Island.'
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(3.6 MB)
View from triangulation station Fort Hale.
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(3.05 MB)
Westerly view from triangulation station Stony Hill. View includes conical tin signal on pole for seeing reflected sun at greatdistance.
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(3.74 MB)
Westerly view from triangulation station West Rock near New Haven.
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(3.52 MB)
Two telescopic views. Top view is of Osborne Hill as seen from Mt. Carmel.Bottom view is of Harrow Hill signal as seen from Buttermilk Hill.
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(7.13 MB)
Two telescopic views. Friar's Head Signal as seen from Mt. Carmel. Ruland Hill Signal as seen from Mt. Carmel.
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(6.96 MB)
Two telescopic views. Hempstead Harbor Signal as seen from Bald Hill. LoafHill Signal as seen from Bald Hill.
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(6.73 MB)
Ruland Hill Signal as seen from Mt. Carmel.
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(2.07 MB)
Friars Head signal as seen from Mt.Carmel.
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(3.3 MB)
Loaf Hill signal as seen from Bald Hill.
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(2.36 MB)
Finished view from Mt.Carmel looking to North East No.1
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(10.09 MB)
Finished view from Staten Island fire signal towards Manhattan.
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(7.74 MB)
Finished view from Staten Island fire signal towards Manhattan. View emphasizing Manhattan.
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(2.21 MB)
Finished easterly view from Stony Hill
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(11.44 MB)
Finished view from Yard Station. Graphic includes triangulation diagramextending from Mt.Holly to Mt. Hope.
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(5.19 MB)
Panoramic view showing Mt.Hope and Grand View from Station Montrose.
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(2.02 MB)
View of Diamond Hill by Ferdinand Gerdes.
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(4.3 MB)
View looking north from Fort Hale
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(3.86 MB)
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