Park County and Montana stockmen may legally challenge the agreement reached by the eight Interagency Bison Management Plan (IBMP) participants opening the Gardiner Basin to winter grazing by Yellowstone National Park bison.

Here's something you don't see every day: an ermine streaking through the snow at Lake Butte, captured by the Yellowstone Volcano Observatory webcam set up to provide a live view toward Steamboat Point, Mary Bay and the north shore of Yellowstone Lake.

They are the three most beautiful words in the English language: Yellowstone opens today. As of right now, the west side of the Park is open to traffic, despite some issues with snow, particularly in the Old Faithful area. Here's a look at the rest of the spring road-opening schedule.

A controversial plan to expand the winter grazing for Yellowstone National Park bison far north of the Park's northern boundary has the support of all eight Interagency Bison Management Plan (IBMP) participants, as the last holdout announced he would sign off on the plan tonight.