Assessing the Health of a Sugar Pine in California
![Image: Assessing the Health of a Sugar Pine in California](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/Stephenson_Figure_5.jpg?itok=b8eGvI00)
Detailed Description
USGS biologists assess the health of a sugar pine, one of tens of thousands of individual trees whose fates have been tracked annually throughout the drought in California.
Sources/Usage
Public Domain.