U. S. Geological Survey - National Geo…

[Unnamed layer] [Unnamed layer] [Unnamed layer]
Service health Now:
Interface
Web Service, ArcGIS MapServer 10.2
Keywords
map, indices, index, reference, grid, 1x1 degree, 30x60 minute, 100K, 1:100, 000, 15 minute, 63K, 1:62, 500, 7.5 minute, 24K, 1:24, 000, 3.75 minute, United States, US, NGP-TNM, REST, WMS
Fees
unknown
Access constraints
U. S. Geological Survey - National Geospatial Program
Data provider

U. S. Geological Survey - National Geospatial Program (unverified)

Contact information:

U. S. Geological Survey - National Geospatial Program

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The USGS Map Indices service from The National Map (TNM) consists of 1x1 Degree, 30x60 Minute (100K), 15 Minute (63K), 7.5 Minute (24K), and 3.75 Minute grid polygons used in The National Map viewer for reference and to download data. At 1:24,000-scale (24K), the standard map size is 7.5 minutes of latitude by 7.5 minutes of longitude. At 1:100,000-scale (100K), the standard map size is 30 minutes of latitude by 60 minutes of longitude. The National Map viewer allows free download of public domain USGS map indices data in Esri File Geodatabase format.

Available map layers (12)

Labels (0)

1x1 Degree labels (1)

30x60 Minute labels (2)

15 Minute labels (3)

7.5 Minute labels (4)

3.75 Minute labels (5)

Features (6)

1x1 Degree Index (7)

30x60 Minute (1:100K) Index (8)

15 Minute (1:63K) Index (9)

7.5 Minute (1:24K) Index (10)

3.75 Minute Index (11)

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Last updated 2025-04-06 06:10:13 UTC.