Officials have confirmed the same parasite that felled thousands of whitefish in the Yellowstone River last year is present in the current spate of fish deaths.

Yellowstone National Park is seeking volunteers for a National Public Lands Day project.

Starting September 1, 2017, visitors can enter the winter 2017-2018 snowmobile lottery for permits in Yellowstone National Park.

WildEarth Guardians has formally filed suit against the U.S. Fish and Wildlife Service over protections for Yellowstone-area grizzly bears.

Interior Secretary Ryan Zinke has thrown his weight behind a mining ban proposal in the Paradise Valley outside of Yellowstone National Park.

Although it’s one of the most popular thermal features in Yellowstone National Park, the origins of Lone Star Geyser are somewhat obscure.

More dead fish have been found in the Yellowstone River, but not nearly as many as last year, when officials had to close access to parts of the river.

Officials are seeking the operator of a drone allegedly witnessed photographing grizzly bears in Grand Teton National Park earlier this week.

Fire restrictions have been lifted for Grand Teton National Park, Bridger-Teton National Forest, and other lands in the Jackson Hole area.

Dead fish have been found in the Yellowstone River near the hub of last year’s fish kill, which closed the river for nearly a month.