Randy Olson, Melissa Farlow Photography

RANDY OLSON_06103_495997.JPG

A Yellowstone geoglogist shoves off to plumb a hot spring using a crude measuri ng tape tied to scrap metal.

Copyright

RANDY OLSON

Image Size

5099x3428 / 14.6MB

Keywords

boats, geologists, grand prismatic spring, hot springs, national park personnel, rowboats, scientists and technicians

Contained in galleries

Our National Parks: Legacy at Risk OLSON_National Geographic magazine 10/1994