Yellowstone National Park

Neal Herbert / Yellowstone National Park via AP

Yellowstone National Park officials say a wolf they euthanized after hikers found the animal suffering from a serious injury had been shot.

Park officials released preliminary necropsy findings Thursday for the wolf that was discovered wounded on April 11 near Gardiner, Montana, in northern Yellowstone.

They are offering a reward of up to $5,000 for information leading to the shooter's conviction. The alpha female of the Canyon Pack was one of three white wolves in Yellowstone.

Jim Urquhart / AP Photo

Federal officials are delaying their decision on whether to lift protections for more than 700 grizzly bears in and around Yellowstone National Park and allow hunting, amid opposition from dozens of American Indian tribes and conservation groups.

Officials had planned to finalize the proposal to turn jurisdiction on grizzlies over to state officials in Montana, Idaho and Wyoming by the end of 2016.

Yellowstone National Park, Bison, Lamar Valley
Emilie Ritter Saunders / Boise State Public Radio

Yellowstone National Park biologists say more than 900 wild bison would need to be killed or removed this winter to begin reducing the size of herds that spill into neighboring Montana.

The park has an estimated 5,500 bison, the highest number since at least 2000.

Park officials meet Thursday with state, tribal and U.S. Agriculture Department representatives to discuss options for managing the animals.

Biologists say 900 would need to be removed just to stabilize population growth.

Yasushi Ish / Flickr Creative Commons

The National Park Service is celebrating its centennial this summer. At the nation’s first park, attendance is on the rise. But deadly incidents this year at Yellowstone are reminders of the inherent wildness of the park.

Twenty-three-year-old Colin Scott was 225 yards away from the designated boardwalk at the Norris Geyser Basin when he apparently slipped and fell into a hot spring. Scott is the 22nd person known to have died in the park's acidic pools.

screengrab / National Geographic Channel

Mud baths aren't just for spa-loving humans.

A National Geographic video captured both grizzlies and black bears submerging in what's referred to as a "bear bathtub" in Yellowstone National Park. The natural swimming hole serves as a place for the bears to cool off, take a drink and get squeaky clean.

Cameras placed around the hole recorded the action, giving insight into the iconic predators' behavior.

Craters of the Moon National Monument / Flickr Creative Commons

The National Parks Service (NPS) is offering free admission to all parks, preserves, monuments and historical sites through April 24. The annual week of freebies has added meaning this spring: the NPS is celebrating its centennial in 2016. 

USEPA / Flickr Creative Commons

If you’re thinking about making a trek to the country’s first national park this summer, you are far from alone. About 1.3 million people have visited Yellowstone National Park so far this year, which represents a nearly 20 percent increase over last year.

Yellowstone officials say almost 800,000 visitors came through in June, which broke that month’s previous record by 12 percent.

grizzly bear, yellowstone
Xinem / Flickr Creative Commons

Getting hurt at Yellowstone National Park isn't quite as glamorous as you might think.

The Casper Star-Tribune reports that although the park is full of hazards like bears, bison, scalding water and canyons, visitors are most likely to be injured from mundane accidents like trips, slips and falls.

Bear attacks are dramatic but exceedingly rare. National Park Service statistics put the likelihood being injured by a bear during a visit to Yellowstone at 1 in 2.1 million.

James Good / Flickr Creative Commons

The University of Idaho says it won't graze sheep this summer on three high-elevation areas in eastern Idaho and western Montana until a lawsuit filed by environmental groups concerning a federal sheep research facility is resolved.

Federal officials in documents filed Wednesday in U.S. District Court say the university in March notified the U.S. Department of Agriculture it wouldn't send sheep or sheepherders to the allotments this summer.

SkyWest, airplane, airport
Aero Icarus / Flickr Creative Commons

SkyWest Airlines has announced it will soon offer jet flights between West Yellowstone and Salt Lake City to connect passengers with Delta flights.

The Delta Connection flights, operated by SkyWest, will begin in June. The airline says it will run flights twice a day from Thursday through Monday and once each day on Tuesdays and Wednesdays.

John Carrel / Flickr Creative Commons

Warmer-than-normal winter temperatures may be to blame for bringing a grizzly bear out of hibernation early in Yellowstone National Park. The park confirmed a report of a grizzly eating a bison carcass on Feb. 9 in the central part of the park in Wyoming.

Jim Peaco / Yellowstone National Park | Flickr Creative Commons

Yellowstone National Park will require an overnight backcountry permit fee starting May 1.

The National Park Service says the money raised from the new fee will help pay the costs of running the park's backcountry program.

Under the new fee, anyone obtaining a permit to stay overnight in the backcountry between Memorial Day and Sept. 10 will have to pay a per-person, per night permit fee for all individuals 9 years of age or older.

USFWS Mountain-Prairie / Flickr Creative Commons

The American Civil Liberties Union has asked Yellowstone National Park to allow public access to an area near Gardiner where captured wild bison are being held for slaughter.

An attorney for the ACLU said in a Friday letter to Yellowstone Administrator Dan Wenk that the closure of the Stephens Creek facility and surrounding areas of the park violates the public's right to observe the capture activities.

The civil liberties group represents wildlife advocates from the Buffalo Field Campaign and freelance journalist Christopher Ketcham.

Jim Pasco / Yellowstone National Park

Yellowstone National Park is reporting a record high number of visitors in October.

Just over 194,800 visited the park in October, surpassing the previous October record of over 189,000 set in 2010. 

There were over 3.4 million recreational visits to Yellowstone in the first 10 months of 2014, an increase of over 10 percent over the same period last year.

With two months left in the calendar year, 2014 is already the second-highest visitation year on record. The park's peak year was 2010, when there were over 3.6 million visitors.

Neal Herbert / Yellowstone National Park | Flickr Creative Commons

A German citizen who crashed a drone into a lake in Yellowstone National Park this summer has been banned from the park for a year and was ordered to pay $1,600 in fines and restitution.

Andreas Meissner of Koenigswinter, Germany, was charged with four federal misdemeanors after a drone he was using to shoot video of a charity bicycle ride through the park crashed into Lake Yellowstone on July 18.

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