Photograph of packrat middens which are collections of debris.

Photograph of packrat middens which are collections of debris, such as plants, rocks, bones, and other artifacts.

Detailed Description

Packrat middens (outlined in yellow) are collections of debris, such as plants, rocks, bones, and other artifacts, that preserve key environmental information from as far back as 45,000 years ago.

Details

Image Dimensions: 250 x 250

Date Taken:

Location Taken: US