Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Satellite image with avalanche study paths outlined (left panel; credit, Google Earth) and Lidar output showing relative canopy height (right panel; credit:USGS).
Click image to see full Google Earth image attribution
