Mark Heinz
Mark Heinz covers the outdoors and wildlife for Cowboy State Daily.
He previously worked or freelanced for numerous newspapers and magazines across Wyoming, Idaho and Montana, covering all manner of news and feature stories. He has a strong background in topics related to wildlife, hunting, and wildlands conservation. He's written extensively since the 1990s about the controversies surrounding wolves, grizzly bears and mustangs.
He also enjoys people-centric stories with quirky edge of humor and has written several such pieces for Cowboy State Daily.
Mark lives in Laramie with his wife, Kendy, and the youngest of their five children.
Latest from Mark Heinz

Will Wolf Torture Felony Cruelty Indictment Spill Over To Wyoming Hunters?
Some worry that the felony animal cruelty case against Daniel resident Cody Roberts for allegedly tormenting and killing a wolf could impact hunters and agricultural predator control in Wyoming.
Mark HeinzAugust 21, 2025

Black Bear In Full Sprint Chases Down Mule Deer Next To Yellowstone Highway
In a dramatic display, a black bear in a full sprint chased down a mule deer doe Sunday in full view of the Sylvan Pass highway in Yellowstone. An expert says it’s rare for bears to chase down prey like that.
Mark HeinzAugust 21, 2025

Injured Mushroom Hunter Pulled Out Of Rugged Area In Medicine Bow Forest
An already-busy year for Carbon County Search and Rescue got busier Monday when a mushroom hunter became injured, stranded and in "severe danger" deep in the Medicine Bow National Forest.
Mark HeinzAugust 21, 2025

Bowhunter Out For Bighorn Stumbles Across Trophy-Sized Ram’s Skull With Intact Horns
In a fantastic twist of fortune, a Wyoming archery hunter was out to fill a bighorn sheep ewe tag when he discovered the skull and horns of a trophy-sized bighorn ram. It’s a rare “deadhead” find that most hunters dream about.
Mark HeinzAugust 20, 2025

Lawmakers Consider Charging Fee For Mountain Biking On Wyoming State Trails
Wyoming might start charging bicyclists to use state trails. Riders and mountain biking advocates said they might support a fee as long as the money goes back into trail building and maintenance.
Mark HeinzAugust 20, 2025

No Matter Whether It’s Legal Or Not, Hunters Likely To Corner-Cross Anyway
Regardless of all the hype and controversy around corner-crossing, hunters say it doesn’t really matter. No matter what the U.S. Supreme Court or Wyoming Legislature decide on the issue, they’ll probably do it anyway.
Mark HeinzAugust 19, 2025

Fatal F.E. Warren Shooting Further Hurts Sig Sauer’s Already-Damaged Reputation
The already-battered reputation of Sig Sauer pistols will continue to suffer in the wake of a fatal shooting at F.E. Warren Air Force Base, regardless of whether the pistol involved malfunctioned, gun industry experts say.
Mark HeinzAugust 19, 2025

Snakes In A Plane (Hangar): Greybull Airport Is Rattlesnake Central
If Samuel L. Jackson has had it with all those mother-bleeping snakes on that mother-bleeping plane, he should steer clear of Wyoming. Rattlesnakes are so common at the Greybull airport, the staff is used to them, although they might freak visitors out.
Mark HeinzAugust 18, 2025

With Beaver Population Dropping In Wyoming, Artificial Dams Rise In The Bighorns
It is thought there are fewer than half the beavers in the Bighorn National Forest now compared to about 15 years ago, and to make up for their work, wildlife officials have built more than 150 artificial dams. It’s not clear why the beaver population is declining.
Mark HeinzAugust 17, 2025

Air Force To Blow Up Cybertrucks With Missiles To Practice Terrorism Response
The Air Force plans to use Tesla Cybertrucks for target practice because there’s concern that terrorists might start using the hulking vehicles. According to contracting documents, the Cybertrucks have features that could make them formidable.
Mark HeinzAugust 16, 2025

Yes, Prairie Dog Hunting Guides Exist, And They Have A Robust Business
Prairie dog hunting isn't about getting a trophy animal to put on your wall. It's more about getting in as much shooting as possible. It’s not so much hunting in the traditional sense, as it is live target practice. That's why people hire guides.
Mark HeinzAugust 16, 2025

Wyoming’s Mountain Lions Can’t Roar Like African Lions, But They Can Purr
Wyoming’s mountain lions aren’t lions in the true scientific sense. African lions are classified among “roaring cats,” while mountain lions fall in the less glamorous-sounding “purring cat” category. And they do purr.
Mark HeinzAugust 16, 2025

Charging Grizzlies Spark Rare And Widespread ‘Bear Warning’ In Canada
For the first time in nearly a decade, a roughly 2,500-square-mile county in Alberta, Canada, has issued a county-wide “bear warning,” after numerous reports of people being charged by grizzlies.
Mark HeinzAugust 15, 2025

Why Is An African Antelope On A Wyoming Air Force Base T-Shirt?
In a mix-up over different meanings of the term “antelope,” the F.E. Warren Base Exchange store ended up with T-shirts depicting an African antelope, not a Wyoming pronghorn.
Mark HeinzAugust 14, 2025

Montana Outfitter Kills Grizzly, Fails To Report It And Faces $10,000 Fine
A Montana outfitter faces up to a $10,000 fine for shooting a grizzly bear while black bear hunting. A Wyoming hunter who went through a similar case said it can be incredibly difficult to distinguish between the two bear species.
Mark HeinzAugust 13, 2025

Wyoming Timber Industry Set For Huge Comeback, More Sawmills Needed, Officials Say
Long-term success of expanding the Wyoming timber industry hinges on building back the “local timber industry,” instead of trucking logs to mills in other states, Bighorn National Forest Supervisor Andrew Johnson told a legislative committee on Tuesday.
Mark HeinzAugust 12, 2025

Campers Creeped-Out By ‘Weird’ Masked Bandit Around Campsite In Bighorn Mountains
A Sheridan couple was baffled and creeped-out by trail camera photos showing a masked bandit pilfering their campsite in the Bighorn Mountains over a four-hour period last week.
Mark HeinzAugust 12, 2025

Wyoming Mustang Named ‘Red Solo Cup’ After Toby Keith Song Up For Adoption
Wild horses caught in government roundups have better chances of being adopted if they’re trained first. That’s the hope for one Wyoming mustang named Red Solo Cup, after the popular Toby Keith song.
Mark HeinzAugust 11, 2025
Green River Man Used Coke Bottle Silencer In Five-Year Deer Shooting Spree
In a case that took years to crack, game wardens say a Green River man used a .22 rifle outfitted with a suppressor made from plastic Coke bottles to illegally shoot five deer in town, according to the Wyoming Game and Fish Department.
Mark HeinzAugust 10, 2025
Move Over, Prairie Grizzlies, Here Come The Prairie Mountain Lions
Mountain lions are associated with, well, mountains. But they are increasingly reclaiming habitat in Great Plains states such as Nebraska and Kansas. That follows patterns seen from other species, like grizzlies expanding back into prairie areas.
Mark HeinzAugust 10, 2025

Why Trail Cameras Are OK For Hunting In Wyoming, But Live Feed Video Isn’t
As technology continues to redefine hunting, at least one matter seems settled: Trail camera photos and videos are legally and ethically OK to scout wildlife, but livestream video is not.
Mark HeinzAugust 09, 2025

Fishermen Outraged Watching Huge ‘Tonka Truck’ ATV Rip Up Montana Riverbed
A Montana fishing guide said he was outraged watching someone drive a huge “Tonka Truck” SHERP ATV right through a river next to him. The huge balloon-tired ATV ripping up the riverbed was illegal, and the driver may be cited.
Mark HeinzAugust 09, 2025

Wolves Might Have Saved Yellowstone’s Aspen From Elk, But Now Bison Are Eating It
Scientists say wolves helped save aspen trees in Yellowstone by eating the elk that were gobbling aspen saplings. But now bison are moving in on the aspen, eating it and knocking the trees over.
Mark HeinzAugust 09, 2025

Colorado Wildlife Agents Target Sheep-Killing Wolf That Might Be From Wyoming
A wolf that killed three sheep in Colorado is safe for now, as wildlife agents can’t go after it because of a wildfire. Meanwhile, locals say it’s a wolf that wandered in from Wyoming in February.
Mark HeinzAugust 08, 2025

Wyoming Ranchers Ask U.S. Supreme Court To Hear Wyoming Corner-Crossing Case
The Wyoming Stock Growers and other agricultural groups want the U.S. Supreme Court to hear a Wyoming corner-crossing case. They say the high court should finally settle whether corner-crossing is legal.
Mark HeinzAugust 08, 2025

Third Colorado Wolf Wanders Into Wyoming And Dies
A third wolf reintroduced to Colorado wandered into Wyoming and died in late July, wildlife officials announced Wednesday. The female was one of the wolves brought in from Oregon in December 2023.
Mark HeinzAugust 06, 2025

Wyoming Outdoorsman Spoofs Controversial Sydney Sweeney Jeans Ads
Heads have been exploding over the controversial “Sydney Sweeney has great jeans” American Eagle denim ads. A Wyoming outdoorsman decided to spoof it with his own, saying he has great jeans, too.
Mark HeinzAugust 06, 2025

Federal Judge’s Ruling Could Open Door To Putting Wolves Back On Endangered List
A federal judge’s Tuesday ruling could open the door to putting wolves back on the endangered species list in Wyoming and across the West.
Mark HeinzAugust 05, 2025

Scarlett Johansson, Adam Driver Screaming At Each Other Keeps Wolves From Cattle
Oregon wildlife officials are using audio of actors Scarlett Johansson and Adam Driver screaming at each other in the movie “Marriage Story” to scare wolves away from cattle. It seems to work, but isn’t very practical, a wolf expert says.
Mark HeinzAugust 05, 2025

Shift In Timber Rules Could Clear Way For Revival Of Wyoming’s Lumber Industry
Wyoming’s few remaining lumber mills have struggled, but a shift in federal and state timber policy might change that. Trump has ordered an “immediate expansion” of timber production, and Gov. Mark Gordon on Friday ordered Wyoming to follow suit.
Mark HeinzAugust 05, 2025