South Dakota

7 Most Rattlesnake Infested Areas in South Dakota

Published

2 months ago

March 28, 2026

7 Most Rattlesnake Infested Areas in South Dakota

There is only one rattlesnake native to South Dakota: the prairie rattlesnake. Also known as the Great Plains rattlesnake, it has the largest range of any rattlesnake in North America, stretching from Canada to Mexico.

In South Dakota, the prairie rattlesnake’s range crosses through the western parts of the state and lands around the Missouri River. The prairies, badlands, rocky outcrops, and river watersheds make ideal places for it to thrive, and these snakes are most often found in areas where that terrain provides them with room to hide and hunt.

These snakes are not aggressive toward humans, but they will defend themselves if threatened. That is why the areas below stand out, as they combine the kinds of habitat where prairie rattlesnakes are most likely to live with places where people also hike, camp, and explore.

Custer State Park

Herd of buffalo in Custer State Park.

Spanning 71,000 acres, Custer State Park is home to granite mountain peaks, lakes, and grasslands. Set in the Black Hills, its most noteworthy trails are up mountains such as Black Elk Peak, but its Wildlife Loop Road runs for 18 miles through open grasslands home to prairie dogs, bison, and other animals. These grasslands are a prairie rattlesnake’s preferred habitat, as they can slither through undetected and feed on prairie dogs, taking over their colonies.

Prairie rattlesnakes can be found in other places in Custer State Park as well, including in lower-elevation campgrounds. There have been multiple reports of rattlesnakes wandering onto campgrounds. This can be especially dangerous for guests who wander outside without proper footwear. That’s why it’s critical to always wear good shoes or boots while in these parks to avoid a nasty bite if you accidentally step on one of these reptiles.

Badlands National Park

These badlands contain one of the world’s richest fossil beds. The area was once covered by a sea, leaving behind many ancient marine creatures, such as the massive Mosasaurus. Mammal fossils are also common here, such as the Nimravid cat and the Brontothere, which likely grew to 8 to 16 feet tall and closely resembled modern rhinos. The badlands still provide rich habitat for wildlife, including prairie rattlesnakes, which are most often found in the prairies below the Badlands National Park’s iconic sedimentary rock formations.

The prairie rattlesnake feasts on a wide variety of prey in the park, from prairie dogs to burrowing owls and ferrets. It uses its heat-seeking pits to track its prey, while its tongue picks up particles in the air to “smell.” However, these snakes are not the only predators here. Red-tailed hawks and Golden Eagles are known to attack and eat these rattlesnakes, along with badgers.

Prairie rattlesnakes are most active from the spring to fall, but they can also come out in slightly cooler weather to bask in sunlight.

Lake Francis Case

Lake Francis Case was formed by the Fort Randall Dam on the Missouri River in the 1950s. It covers 102,000 acres with a maximum depth of 140 feet. Unfortunately, its creation flooded a Native American settlement and forced the community out. The lake is surrounded by prairies, from which hikers have seen prairie rattlesnakes. The lake is also home to a population of prairie dogs, which are prime prey for prairie rattlesnakes.

However, some prairie rattlesnakes can get closer to the shoreline, as Snake Creek Recreation Area is one of the better-known hotspots. They have been spotted hiding in the rocks and bushes by the lake. One trail known as a rattlesnake hotspot is the Shannon Trail, which connects the north and south campgrounds and overlooks Lake Francis Case.

George S. Mickelson Trail

The George S. Mickelson Trail is a 109-mile-long trail along an abandoned rail line across western South Dakota in the Black Hills. It connects to multiple forests, state parks, and privately maintained trails, including areas near Custer State Park. Toward the lower-elevation southern end of the trail, rattlesnakes have been regularly sighted by hikers and South Dakota park authorities.

The southern end of the trail passes through several habitats that support the prairie rattlesnake, such as the lower-elevation Sheep Canyon, where the rattlesnakes can hide among rocks, and the grassy prairies near Custer, South Dakota. Hikers in South Dakota sometimes find these snakes in prairie dog holes, as prairie rattlesnakes occasionally stick their heads out of them.

Wind Cave National Park

Wind Cave National Park comprises two distinct ecosystems: a vast cave and an above-ground prairie. The cave was of great importance to the Lakota people because it is central to their emergence story. What makes this park a good environment for rattlesnakes is its mixture of prairies and ponderosa forests. Prairie dogs in particular dig holes known as underground colonies or ‘towns,’ which prairie rattlesnakes often use as ambush sites to hunt prey.

The rattlesnakes can also take refuge in rocky outcrops, both to protect themselves from the elements and to ambush prey. During cooler parts of the year, snakes are more likely to bask in the sun, increasing the chance of human encounters. The Wind Cave National Park is also close to several other rattlesnake hotspots on this list, including Custer State Park.

Missouri River

The Missouri River is the longest river in the United States, flowing for 2,341 miles from the Rocky Mountains of Montana down into the Mississippi River in Missouri. It flows through western and central South Dakota as well, providing water for a large semi-arid watershed. In South Dakota, the drier climate and the rocky bluffs, shorelines, and nearby prairie habitat along the river make this corridor one of the main areas where prairie rattlesnakes are found.

Prairie rattlesnakes are most strongly associated with western South Dakota and the lands around the Missouri River. They are more often found in rocky or grassy areas near the river than in the water itself, though they have been observed swimming and may occasionally enter the water. As a result, people fishing or hiking through the Missouri River valley should stay alert for this snake.

Black Hills National Forest

The Black Hills National Forest is a massive area, covering 1.2 million acres of forests and mountains, or 110 miles long by 70 miles wide. It has been called an Island in the Plains, as it rises above the mostly flat landscape of the Great Plains.

The forest contains 1,300 miles of streams, 11 reservoirs, 353 miles of trails, and 30 campgrounds. While exploring this forest, hikers and campers may encounter rattlesnakes, especially in lower-elevation areas or in rocky areas. In hot summer weather, rattlesnakes often retreat from the heat, but during the cooler spring and fall months, they are more likely to bask in the open.

In some cases, hikers may not hear a warning rattle right away, which is one reason caution matters in rocky or brushy areas. These tails don’t provide the support needed for their rattles to make a sound. Wildlife experts believe this is an evolutionary change, since rattlesnakes that make a loud rattle are more likely to be killed by frightened hikers or campers.

Humans are rattlesnakes’ biggest predators

Prairie rattlesnakes face many threats, and encounters with humans are one of them. Rattlesnakes usually try to avoid people when they can, or warn them when someone gets too close. These incidents are often avoidable if you take proper precautions, such as wearing sturdy shoes, staying on trails, and being aware of what lies ahead. These snakes may be intimidating, but they are far more threatened by humans than we are by them.

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South Dakota

South Dakota Community Foundation encourages nonprofits to apply for funding

Published

5 hours ago

June 2, 2026

Press Room

South Dakota Community Foundation encourages nonprofits to apply for funding

RAPID CITY, S.D. (KOTA) – The South Dakota Community Foundation is encouraging nonprofits to apply for funding this June.

Beth Massa and Ginger Niemann joined us live with what you need to know before applying.

Watch the full interview above.

See a spelling or grammatical error in our story? Please click here to report it.

Do you have a photo or video of a breaking news story? Send it to us here with a brief description.

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South Dakota

Roberta Cahill

Published

15 hours ago

June 1, 2026

Press Room

Roberta Anne (Chaboya) Cahill, 82, of Pierre, passed away Friday, May 29, 2026 at Avantara in Pierre. A celebration of life will be held at Isburg Funeral Chapel on Sunday, June 7, 2026 at 4:00pm with the family greeting visitors one hour prior to the service. A graveside service will follow Monday, June 8, 2026 at Greenwood Presbyterian Cemetery in Greenwood, SD at 11:00 AM followed by a small luncheon.

Roberta was born April 1, 1944 in Wagner, SD, the daughter of Sarah St. Pierre and George Chaboya. Family and close friends lovingly called her Berdie or Bea. She grew up in Pierre where she attended McKinley Elementary and Pierre Jr High School and graduated from the Flandreau Indian Vocational High School in 1962 where she was a cheerleader, salutatorian, senior class president and editor-in-chief of the yearbook. She received her Bachelors of Science degree from Northern State College in 1966 and her Masters of Art from the University of South Dakota in 1971. She was an enrolled member of the Yankton Sioux Tribe.

Roberta married David Cahill on June 9, 1967 in Deadwood, SD. Together they raised Daniel, born in 1981, and instilled the values and ethics they had inherited from their parents. She was a tremendous wife and mother allowing her family to thrive. They made many trips together as a family, travelling to the Black Hills often and going on multiple road trips built around the family love of baseball. She attended all of her family’s events she could, even keeping score at Dan’s baseball games and filming games and concerts. She was also the primary photographer for family events making sure important moments like holidays, birthdays and trips were documented. Roberta was known among her family as a supporter and protector of all. She looked after everyone, never refusing to help when asked and offering a helping hand when necessary. No one went without if she could help it. She was a great listener and advisor leading to her being the go-to person for her family.

Roberta’s work career can be encapsulated in one word: service. Much like her husband David, each position she took was in service to others. She began her career working for the State of South Dakota as a social worker. She then moved to the federal government in 1968. During this time she worked at the Pierre Indian School as a counselor and dorm parent where David was a social worker. She and David then moved to Sitka, AK where she was the girl’s freshmen and sophomore councilor for two years at Mt. Edgecumbe High School, a boarding school for the Indigenous students from all over Alaska. At both schools, Roberta was a fierce advocate for her students, always fighting for their best interests. They then moved back to South Dakota in 1978 where Roberta worked for the Bureau of Indian Affairs in Aberdeen until moving back to Pierre in 1980 to raise her new family nearer to her family and home. She continued her work with the BIA in Ft. Thompson until 1990 when she transferred to the Indian Health Service as a Community Health Educator, ending her government career in January 2003. Roberta retired for good after a decade working for American Cancer Society in Pierre where she was the Director of SD Community Partnerships, concentrating on outreach and education, while also helping organize events such as the Relay for Life.

Roberta and David loved travelling and meeting new people. They took many trips across the country, mostly by car or van. They travelled across the Central, Southern, and Western United States. They were especially fond of Western Canada and Alaska making multiple road trips beginning in 1976 through 2016. Both were extremely fond of nature and animals. Roberta was a prolific photographer taking hundreds of pictures of nature and animals on these trips. They had two dogs, Sport and Snoopy they loved dearly and spoiled. Later they spent untold hours feeding birds, squirrels and rabbits in their backyard. She was particularly fascinated with eagles and spent hours of time just sitting along the causeway or Capital Lake watching the ducks and geese or driving along the Oahe Dam or the local islands to observe nature. She and David referred to this as their therapy. Roberta was also a philanthropist, donating to many charities including those doing medical research, supporting veterans, and especially supported wildlife and natural resource protection and food insecurity charities.

Remaining to cherish Roberta’s memories and carry on her legacy are son Daniel (Tucson, AZ), her three brothers, Larry Haukaas (Debby) of Pierre and children Paul, Larry and Jennifer, Thurlow Haukaas (Estelle) of Pierre and nine children, Harley Haukaas (Laurie) of Yankton, SD and children Carly, Samantha and Haley, and sister Ellen Bad Moccasin (Paul) of Pierre and children Robert, Derek and Marcus and numerous cousins.

Preceding Roberta in death is her husband David, mother Sarah, brother Greg, sisters Eileen Jo Haukaas and Julie Kay Haukaas and many uncles and aunts.

In lieu of flowers, the family asks you to donate to PAWS or PARS both in the Pierre area.

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South Dakota

AP Decision Notes: What to expect in South Dakota’s state primary

Published

1 day ago

June 1, 2026

Press Room

AP Decision Notes: What to expect in South Dakota’s state primary

WASHINGTON — South Dakota’s governor, the speaker of the state House, the state’s lone representative in Congress and a businessman will face off in a competitive Republican primary for governor on Tuesday. Primary voters will also choose nominees for other state and federal offices, while Sioux Falls residents will elect a new mayor.

Gov. Larry Rhoden seeks a full term as the state’s chief executive. He was previously lieutenant governor under then-Gov. Kristi Noem but assumed the top job when Noem stepped down in early 2025 to join President Donald Trump’s Cabinet.

Serving less than half a term as governor was not enough for Rhoden to clear the Republican field. He faces strong challenges from U.S. Rep. Dusty Johnson, state House Speaker Jon Hansen and businessman Toby Doeden.

The winner will face former state Sen. Dan Ahlers in the general election. Ahlers is unopposed for the Democratic nomination.

At the top of the ballot is the race for the U.S. Senate, in which Republican Mike Rounds seeks a third term. His opponent in the primary is Justin McNeal, a U.S. Navy veteran who ran as an independent in 2024 against Johnson for his U.S. House seat but was kept off the ballot over invalid signatures on his nominating petition.

Nonprofit executive and former state trooper Julian Beaudion is unopposed for the Democratic nomination. Attorney and military veteran Brian Bengs is running in the general election as an independent. Bengs previously ran for the U.S. Senate in 2022 and received 26% of the vote against Republican Senate Majority Leader John Thune.

State Attorney General Marty Jackley is running to replace Johnson in the U.S. House. He faces Republican James Bialota in the primary.

Trump has endorsed Rounds for U.S. Senate and Jackley for U.S. House. He did not endorse a candidate for governor.

In South Dakota primaries for governor, U.S. Senate and U.S. House, candidates must receive at least 35% of the vote to win the nomination. If no candidate reaches that threshold, the top two vote-getters advance to a June 23 runoff.

In Sioux Falls, the state’s most populous city, five candidates are competing to replace term-limited Mayor Paul TenHaken. If no candidate receives a vote majority, the top two finishers will advance to the runoff.

The key counties to watch on primary night are on opposite ends of the state. Minnehaha County on the eastern border is home to Sioux Falls. Pennington County on the western border is home to Rapid City.

South Dakota is one of the most reliably Republican-voting states in general elections, so the winners in Tuesday’s GOP primaries should enter the general election campaign with a considerable advantage.

Here are some of the key facts about the election and data points the AP Decision Team will monitor as the votes are tallied:

When do polls close?

Polls close at 7 p.m. local time, which is 8 p.m. and 9 p.m. ET. Polls in most of the state are in Central time and close at 8 p.m. ET, but some polls are in Mountain time and close at 9 p.m. ET.

What’s on the ballot?

The Associated Press will provide vote results and declare winners in contested primaries for U.S. Senate, U.S. House, governor, state Senate, state House and mayor of Sioux Falls.

Who gets to vote?

Registered party members may vote only in their own party’s primary. In other words, Democrats can’t vote in the Republican primary or vice versa. Independent voters or those with no party affiliation may participate in the Democratic primary but not the Republican primary.

How many voters are there?

As of April 1, there were about 674,000 registered voters in South Dakota, including about 318,000 registered Republicans, about 138,000 registered Democrats and about 157,000 independents or voters with no political affiliation.

How many people actually vote?

Nearly 119,000 votes were cast in the Republican U.S. Senate primary in 2022.

How much of the vote is cast early or by absentee ballot?

About 19% of the 2024 primary vote and about 20% of the 2022 primary vote was cast before primary day.

As of May 26, about 17,000 ballots had already been cast in Tuesday’s election, roughly 79% in the Republican primary and roughly 15% in the Democratic primary.

When are early and absentee votes released?

In South Dakota, results from mail and in-person early voting are usually released together with results from in-person Election Day voting. More than a third of the state’s 66 counties tend to release most or all of their results, including in-person Election Day results, in the first vote update.

How long does vote-counting usually take?

Although South Dakota spans two time zones, state law requires that no results are released until the final polls have closed at 9 p.m. ET.

In the state’s most recent U.S. Senate primary in 2022, the AP first reported results at 9:02 p.m. ET, or two minutes after the last polls closed. The final vote update of the night was at 3:22 a.m. ET, with more than 99% of total votes counted.

When will the AP declare a winner?

The AP does not make projections and will declare a winner only when it’s determined there is no scenario that would allow a trailing candidate to close the gap. If a race has not been called, the AP will continue to cover any newsworthy developments, such as candidate concessions or declarations of victory. In doing so, the AP will make clear that it has not yet declared a winner and explain why.

How do recounts work?

Recounts in South Dakota are automatic only in cases of tie votes. Losing candidates for statewide office may request a recount if the vote margin is 0.25% or less of the total votes cast. Candidates for state legislative and local offices have a higher threshold: 2% of the total votes cast. The AP may declare a winner in a race that is subject to a recount if it can determine the lead is too large for a recount or legal challenge to change the outcome.