View In: ArcGIS JavaScript   ArcGIS Online Map Viewer

Service Description:

All Layers and Tables

Has Versioned Data: false

MaxRecordCount: 2000

Supported Query Formats: JSON

Supports Query Data Elements:

Layers:

• mapunitpolys_esurf (0)

Description: This layer is assembled procedurally from GeMS (NCGMP, 2020) geologic maps. The data in this layer mimics the structure and definitions provided by the GeMS data standard, with the exception that citation information (e.g., from a DataSources table), information from the original published descriptions of map units, information pertaining to national synthesis map units (e.g., Johnstone and others, 2020), standardized age information, and alternative polygon colors are joined onto the spatial data for ease of use here. The 'symbol' field is renamed 'fgdc_symbol' to make it explicit which cartographic standard is used for symbolization (USGS, 2006). Johnstone, S.A., Colgan, J.P., and Roe, W.P., 2025, A synthesis engine for constructing geologic maps of the United States: U.S. Geological Survey Data Report 1210, 36 p., https://doi.org/10.3133/dr1210. National Cooperative Geologic Mapping Program [NCGMP], 2020, GeMS (Geologic Map Schema)—A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods 11-B10, 74 p., https://doi.org/10.3133/tm11B10. U.S. Geological Survey [USGS], 2006, FGDC digital cartographic standard for geologic map symbolization (PostScript implementation): U.S. Geological Survey Techniques and Methods 11-A2, at https://doi.org/10.3133/tm11A2.

Service Item Id: 5847ed9140284b73aa2f49b28c993f28

Copyright Text: The compilation can be cited as: Johnstone, S.A., Colgan, J.P., and Roe, W.P., 2025, A synthesis engine for constructing geologic maps of the United States: U.S. Geological Survey Data Report 1210, 36 p., https://doi.org/10.3133/dr1210. Platt, B.W., Colgan, J.P., Hirtz, J.A.M., Johnstone, S.A., Campos, J.-M., and Roe, W.P., 2025, Cooperative National Geologic Map—Pre-Quaternary geology: U.S. Geological Survey data release, https://doi.org/10.5066/P147SGSS.

Spatial Reference: 102100  (3857)  LatestVCSWkid(0)


Initial Extent:

XMin: -9671752.720072912
YMin: 3948163.8078525825
XMax: -9533541.829007732
YMax: 4078990.9718555887
Spatial Reference: 102100  (3857)  LatestVCSWkid(0)

Full Extent:

XMin: -1.39573759476E7
YMin: 2801775.389199998
XMax: -7445653.492900001
YMax: 6340354.4782000035
Spatial Reference: 102100  (3857)  LatestVCSWkid(0)

Units: esriMeters

Document Info:

N/A

Enable Z Defaults: true

Supports ApplyEdits With Global Ids: false

Supports Dynamic Layers: false

Child Resources:   Info   Relationships

Supported Operations:   Query   Query Contingent Values   Append   Get Estimates