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2023 6-in Orthophotos (State of MD) []

Montgomery County, MD · 2023 Full Details

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Full Details

Title
2023 6-in Orthophotos (State of MD) []
Description
This metadata record describes the 0.50-foot pixel resolution digital orthoimagery produced for Maryland by the Sanborn Map Company. The orthoimagery provided is 4-band (R, G, B, NIR), 8-bit per pixel and delivered in section tiles in uncompressed 4 band GeoTIFF + TFW in feet and meter, compressed 3 band MG3 SID/SDW (20:1) in feet and meter, 5 band MG4 SID/SDW (20:1) in feet and meter, compressed JP2000 (20:1) in feet and meter, and compressed ECW (25:1) in feet and meter. Additionally, the set includes compressed mosaics in MG3 (20:1) and MG4 (20:1) in feet and meter and ECW (25:1) in feet and meter. The data was collected between February 24, 2023 and March 20, 2023 at an altitude of 12400 feet using an UltraCam Eagle camera and complies with the NSSDA standards, large scale maps at 1" = 200'. This orthoimagery is published in Maryland State Plane, NAD 1983 (2011), U.S. Survey Feet. Since the ortho images are raster products, the logical consistency is based on how well the images fit between image tiles and between individual photo frames used to produce the ortho mosaics. The images match within two pixels of each other throughout the project area. This orthoimagery meets ASPRS Class 1 Accuracy Standards for 1"=200' scale mapping
Creator
Montgomery County, MD
Temporal Coverage
2023
Date Issued
2024-09-30
Access Rights
Public
Format
ArcGIS ImageMapLayer
Language
English
Date Added
August 10, 2025
Provenance Statement
The metadata for this resource was last retrieved from Montgomery County GIS Open Data on 2025-08-24.

Links

Cite and Reference

  • Citation
    Montgomery County, MD (2024). 2023 6-in Orthophotos (State of MD) []. . https://opendata-mcgov-gis.hub.arcgis.com/datasets/mcgov-gis::2023-6-in-orthophotos-state-of-md (web service)
  • BTAA Geoportal Link

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