US Physiography

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aspect csp elevation ergo geophysical landforms slope topography us


The Physiography dataset represents the spatial intersection of landforms (available in EE as ERGo/1_0/US/landforms) and lithology (available in EE as ERGo/1_0/US/lithology) data layers. It provides 247 unique combinations out of a possible 270. The values for each type are formed by concatenating the landform and lithology types (e.g., 1101 is "Peak/ridge" landform on "carbonate" lithology). This data layer is sometimes referred to as characterizing "land facets".

The landforms layer is based on the USGS's 10m NED DEM (available in EE as USGS/NED). The lithology layer is not basen on any DEM.

This dataset is provided just for the US, because of the availability of the lithology data layer, though these data are likely available for other countries.


90 meters


Name Min Max Description
constant 1100 4220

Landforms and lithology intersection

Terms of Use

Terms of Use

This dataset is available to use under the Creative Commons BY-NC-SA license.


  • Theobald, D. M., Harrison-Atlas, D., Monahan, W. B., & Albano, C. M. (2015). Ecologically-relevant maps of landforms and physiographic diversity for climate adaptation planning. PloS one, 10(12), e0143619

Explore in Earth Engine

var dataset = ee.Image('CSP/ERGo/1_0/US/physiography');
var physiography ='constant');
var physiographyVis = {
  min: 1100.0,
  max: 4220.0,
Map.setCenter(-105.4248, 40.5242, 8);
Map.addLayer(physiography, physiographyVis, 'Physiography');