CHEYENNE, Wyo. (AP) — Two tribes plan to demonstrate in favor of renaming a valley and a mountain in Yellowstone National Park, places they say are associated with one man who advocated slaughter of Native Americans and another who carried it out.

Leaders of the Blackfoot Confederacy and Great Sioux Nation will gather Saturday at Yellowstone’s North Entrance near Gardiner, Montana, tribal officials said Tuesday.

The tribes seek to change the name of Hayden Valley, a subalpine valley just north of Yellowstone Lake, to Buffalo Nations Valley. They want to change the name of Mount Doane, a 10,550-foot peak five miles east of the lake, to First People’s Mountain.

Efforts to change place names and remove monuments to controversial figures in U.S. history have gained momentum since white supremacists opposed to taking down a statute of Confederate Gen. Robert E. Lee clashed in August with counter-protesters in Charlottesville, Virginia.

But several Native American renaming efforts — some simply to erase racist terminology from maps — have been going on for years. 

In Yellowstone, Hayden Valley is named for Ferdinand Hayden, a geologist whose explorations inspired the park’s establishment in 1872 but who also called for exterminating American Indians who wouldn’t acquiesce to becoming farmers and ranchers.

Mount Doane is named after U.S. Army Lt. Gustavus Doane, who took part in killing 173 noncombatant Indians — women, children and elderly men — in Montana in 1870.

“America’s first national park should no longer have features named after the proponents and exponents of genocide,” the Rocky Mountain Tribal Leaders Council, which represents every tribe in Montana and Wyoming, stated in a 2014 resolution.

The tribes asked Yellowstone last year to rename Hayden Valley and Mount Doane. Park officials responded by explaining the renaming process overseen by the U.S. Geological Survey’s Board on Geographic Names, park Superintendent Dan Wenk said.

“The National Park Service understands that this is an important and sensitive issue,” Wenk said in a statement Tuesday. “We look forward to continuing this conversation.”

The Board on Geographic Names has received several emails on the issue but no official proposal to change the names of Hayden Valley or Doane Mountain, Geological Survey officials said.

GARDINER, Mont. (AP) — A grizzly bear attacked a woman in southwest Montana but was driven off by bear spray.

It was the second grizzly attack in the region in a week.

Andrea Jones of the Montana Fish, Wildlife and Parks Department says the latest attack occurred on Saturday on a private ranch north of Gardiner.

Jones says the victim and two companions were near a cow carcass when the bear attacked and bit the legs and back of the victim. The bear fled when her companions deployed bear spray.

Jones says the victim is being treated for injuries that aren’t considered life-threatening.

No names or other details were released.

On Sept. 4, a hunter was mauled by a grizzly in the same region. That attack also was stopped by bear spray.

NAMPA, Idaho (AP) — A popular southwestern Idaho lake is contaminated with E. coli bacteria.

The Idaho Department of Environmental Quality says lab tests Friday found high levels in Lake Lowell of the bacteria that signals the presence of fecal matter.

Officials on Friday said people visiting Lake Lowell shouldn’t ingest the water and should wash their hands after coming in contact with it.

The state agency says it will monitor the water and try to find out the extent of the contamination and its source.

CAREY, Idaho (AP) — Craters of the Moon National Monument and Preserve in south-central Idaho has been designated an International Dark Sky Park due to its exceptional stargazing.

National Park Service officials formally announced the designation in a news release Tuesday that the Tucson, Arizona-based International Dark-Sky Association made in June.

Craters of the Moon spokesman Ted Stout says the monument and preserve is the 21st area in the National Park Service system to receive the designation.

Overall, it’s among only 39 sites in the United States to be named an International Dark Sky Park.

Stout says the night-sky viewing is excellent at Craters of the Moon because of its distance from large cities and the low southern horizon looking out over the Snake River Plain.

JACKSON, Wyo. (AP) — A Texas man who authorities attempted to rescue from a Wyoming river after he fell off his raft without a life jacket on was arrested on suspicion that he was drunk.

The Jackson Hole News & Guide reports (http://bit.ly/2wqS6Wi ) Grand Teton National Park rangers launched an air, water and ground search Saturday evening after a call came in about the man tumbling into Snake River.

Teton park spokeswoman Denise Germann said the man was able to get back into his raft on his own. Authorities made contact and he was cited for boating under the influence, interference, disorderly conduct, under the influence creating danger to self and others, refusal of breath test and contempt of court.

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Information from: Jackson Hole (Wyo.) News And Guide, http://www.jhnewsandguide.com

DEVILS TOWER, Wyo. (AP) — Just like in the science-fiction movie “Close Encounters of the Third Kind,” UFO enthusiasts are being drawn to a strange geological formation in Wyoming.

Devils Tower played a key role in the well-known UFO film that came out 40 years ago this year. The first Devils Tower UFO Rendezvous will be held at the site from Sept. 14-16.

The formation is actually the solidified core of an ancient volcano.

Experts on UFOs will speak at the convention.

Organizer Brian Olson tells KOTA-TV (http://bit.ly/2vKw5j4 ) that there’s a fun side, too, with plans for a parade, live music and barbecue cook-off.

Devils Tower stands more than 800 feet tall and can be seen for miles.

BILLINGS, Montana (AP) — A cinnamon-colored black bear was captured and euthanized after wandering through a Billings neighborhood eating apples and visiting Beartooth Elementary School.

Fish, Wildlife and Parks spokesman Bob Gibson says the sub-adult bear fell backward from a tree after being hit by a tranquilizer dart Wednesday morning, causing internal injuries.

Billings Police Lt. Mark Cady says the bear was spotted on a bike path in the northeastern part of the city before being reported nearly the elementary school. Officers trailed the bear until it climbed over a chain-link fence and settled in someone’s backyard.

Wildlife biologist Megan O’Reilly says an apple tree in the yard may have enticed the bear.

BILLINGS, Mont. (AP) — A cinnamon-colored black bear was captured and euthanized after wandering through a Billings neighborhood eating apples and visiting Beartooth Elementary School.

Fish, Wildlife and Parks spokesman Bob Gibson says the sub-adult bear fell backward from a tree after being hit by a tranquilizer dart Wednesday morning, causing internal injuries.

Billings Police Lt. Mark Cady says the bear was spotted on a bike path in the northeastern part of the city before being reported nearly the elementary school. Officers trailed the bear until it climbed over a chain-link fence and settled in someone’s backyard.

Wildlife biologist Megan O’Reilly says an apple tree in the yard may have enticed the bear.

MOOSE, Wyo. (AP) — National Park Service rangers have rescued two injured climbers in separate incidents in Grand Teton National Park in northwest Wyoming over a three-day period.

On Monday, rangers were called about 10 a.m. that a climber was injured at the base of the Grand Teton Mountain.

A helicopter was used to extract 22-year-old Mounier Fizari, of Bountiful, Utah, who had fallen about 20 feet as he was climbing. Fizari treated at St. John’s Medical Center in Jackson.

On Saturday, rangers were summoned at about 8:15 a.m. about a climber caught in a rock slide in Garnet Canyon.

They found 24-year old Cassie Grenier, of Jackson, pinned by boulders. Two of the climbing companions were not hurt.

She was taken to St. John’s Medical Center with non-life-threatening injuries.

YELLOWSTONE NATIONAL PARK, Wyo. (AP) — People who want to snowmobile in Yellowstone National Park next winter without a guide can enter a lottery starting this Friday.

The park requires all non-commercially guided snowmobile groups that enter the park to have a permit.

Those wishing to snowmobile without a commercial guide can apply through http://www.recreation.gov from Sept. 1 to Sept. 30. Successful lottery applicants will be notified in mid-October. The park will make any remaining or canceled permits available on a first-come, first-served basis through the same webpage beginning Nov. 3.

The park will allow four trips per day for groups that want to enter Yellowstone without commercial guides. Groups with up to five snowmobiles will be permitted through each of the North, South, East and West entrances each day. Permits cost $40.