Geodetic Control Points 2021

Published by Office of the Chief Technology Officer | District of Columbia | Metadata Last Checked: August 07, 2025 | Last Modified: 2022-02-04T00:00:00.000Z

Control points are captured by land surveyors to create control for orthophotography. These points are captured with survey-grade equipment ensuring the highest accuracy in their location.Horizontal Control Point: Surveyed horizontal geodetic control points that are used in the development of an analytical aerotriangulation solution.Vertical Control Point: Surveyed vertical geodetic control points that are used in the development of an analytical aerotriangulation solution.

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District of Columbia OCTO Washington DC dc elevation geodetic control location planimetrics pmetric21 survey

Complete Metadata

identifier	https://www.arcgis.com/home/item.html?id=3fbec597eef14cce85ab165aede32570&sublayer=4
issued	2024-03-25T16:53:41.000Z
landingPage	https://opendata.dc.gov/datasets/DCGIS::geodetic-control-points-2021
spatial	-77.1115,38.7922,-76.9121,38.9976
theme	[ "geospatial" ]

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