Map of Collected 3DEP Data
![Map of Collected 3DEP Data](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/3DEP_coverage_map.png?itok=lwhETnhO)
Detailed Description
USGS map showing data collected in FY 2016 by the 3D Elevation Program. This map was updated on June 30, 2016. Radar-based technology (known as “ifsar”) used in Alaska, where weather conditions interfere with lidar flights.