Death Gulch in 1899

Detailed Description
The carcass of a large silver-tipped grizzly bear, which succumbed to poisonous gases in the area known as "Death Gulch" in Yellowstone National Park in 1897. Image from Popular Science Monthly Volume 54, Public Domain, accessed from https://commons.wikimedia.org/w/index.php?curid=15271684.
Sources/Usage
Public Domain.
By Unknown - Popular Science Monthly Volume 54, Public Domain, https://commons.wikimedia.org/w/index.php?curid=15271684