The Solar Energy Environmental Mapper is a web-based application that displays environmental data for the southwest U.S. in the context of utility-scale solar energy development.

It provides access to screening-level data about resources and constraints, with analysis tools to help improve siting decisions.

Launch Solar Mapper
View Maps
View Maps

Explore maps of solar resource availability and environmental data. Zoom to pre-defined bookmarks. Print a copy of your map.

View Maps
Access Data

Retrieve detailed information for features on the map. Search for locations of interest by place name, address, or by lat/long.

Perform Analyses
Perform Analyses

Retrieve a report based on a custom area. Measure distances and areas on the map.


NOTE: This tool was prepared to support the BLM 2012 Record of Decision that established the BLM's Western Solar Plan. Some layers may be out of date. The current status of exclusion and variance areas and solar energy zones should be confirmed with BLM Field Office staff in the applicable jurisdictions.

Version 2.0 (August 2014)
  • Updated and added data layers; reorganized data catalog
  • Added data abstracts to Table of Contents
  • Added ability to control drawing order and transparency of individual layers
  • Updated Help tool to describe new features
  • Rebuilt map viewer user open source technologies
For more information, see the News section.

We have many updates planned. Please subscribe for e-mail updates if you want to be notified when new features are released.