Assessing the Health of a White Fir
![scientists measuring a white fir](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Stephenson_Figure%205.jpg?itok=Ff8dX1LA)
Detailed Description
Figure 5: USGS biologists assess the health of a white fir, one of tens of thousands of individual trees whose fates have been tracked annually throughout the drought.
Sources/Usage
Public Domain.