Visitors appear to be steering clear of some U.S. national parks or cutting visits short because of pollution levels that are comparable to what’s found in major cities, according to a study released Wednesday.

A small fire has started in the Hayden Valley of Yellowstone National Park, sending up a plume of smoke that may be visible from park roads.

Craters of the Moon National Monument and Preserve has a busy summer planned for visitors, from touring the lava tubes to viewing the night sky to harnessing the power of the sun.

A push to get Craters of the Moon National Monument and Preserve designated as a national park is on hold, and the idea’s backers aren’t optimistic that it will go anywhere anytime soon given the political situation.

A new superintendent was named Wednesday to Yellowstone National Park, one of the crown jewels of the park system, after his predecessor said he was being forced out by the Trump administration following a dispute over bison.

Price hikes have come to three of Yellowstone National Park’s most iconic hotels as park and concession officials experiment with allowing room prices to rise and fall with demand.

BILLINGS, Mont. (AP) — Yellowstone National Park’s superintendent said Thursday that he’s being forced out as a “punitive action” following disagreements with the Trump administration over how many bison the park can sustain, a longstanding source of conflict between park officials and ranch…

HELENA, Montana (AP) — Yellowstone National Park is launching a new program to capture and quarantine wild bison with the goal of establishing new, disease-free herds across the nation, park officials said Tuesday.

SALT LAKE CITY (AP) — Utah authorities are investigating reports of drinking water contaminated by E. coli linked to prairie dogs at an iconic Utah park, but said Tuesday that tests so far show the water is clean.

CHEYENNE, Wyoming — Grand Teton National Park has inappropriately prevented the public from learning about tentative plans for more than 50 miles of fiber-optic cable and new cellphone towers at 11 locations in the majestic preserve in Wyoming, an environmental group says.

CHEYENNE, Wyoming (AP) — Wyoming will seek an agreement with U.S. Interior Department and National Park Service officials about collecting a fee at Yellowstone National Park to fund wildlife conservation efforts in the states surrounding the park.

YELLOWSTONE NATIONAL PARK, Wyoming — Three bison slaughter protesters who were arrested here earlier this month will be banned from Yellowstone National Park for five years after pleading guilty to misdemeanor charges Monday.

MAMMOTH HOT SPRINGS, Wyo. (AP) — Concerns over aquatic invasive species have led Yellowstone National Park officials to ban the use of felt sole boots or waders and to set a boating season during which watercraft inspections will be available.

CHEYENNE, Wyo. (AP) — A proposal to collect a fee at Yellowstone National Park to fund wildlife conservation efforts in the states surrounding the park has passed the Wyoming House of Representatives.