A scientific crew utilizing Ground Penetrating Radar (GPR) will begin Old Faithful Geyser mapping tomorrow in Yellowstone National Park, scanning shallow subsurface structures like the thickness of the hot spring deposits, fractures, vents and cavities.

Talk about having the Park to yourself: Yellowstone spring biking is now possible, as the 49-mile stretch between the West Entrance at West Yellowstone, Mont., to Mammoth Hot Springs, Wyo., is open, beginning today.

A simple mechanism — side chambers, or loops in the underground plumbing — is what causes Yellowstone geysers to regularly erupt, according to work from a University of California, Berkeley researcher.

We’re nearing the end of the 2014-2015 Yellowstone winter season, with hotels, roads and services to begin shutting down this Sunday.

At a time when the East Coast is socked in with unseasonably high levels of snow, the western side of Yellowstone National Park is lacking the white stuff — leading to some changes in Yellowstone winter policies.

One unfortunate side effect of winter: the inevitable debate over how to handle the Yellowstone bison cull. This winter should be no exception.

The public comment period regarding potential Yellowstone fee hikes has been extended through December 20, as proposed changes for 2015 are still under consideration.

A climate monitoring station has been proposed for Yellowstone National Park under a National Science Foundation project designed to monitor the impacts of climate change, land-use change, and invasive species on the ecosystem.

This is your chance to weigh in on proposed Yellowstone National Park entrance fee increases, as Park officials seek a hike in entrance costs for the first time since 2006 while instituting a backcountry overnight permit fee.

October was another record-setting month for Yellowstone visitation, as over 194,000 people came to the National Park — the most ever for October.