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
Think You Can Survive A Charging Grizzly? Take On Wyoming’s ‘Robobear’
Think you can survive a charging grizzly just because you have bear spray with you? Wyoming Game and Fish’s “Robobear” is an eye-opener, as Cowboy State Daily reporters Clair McFarland and Mark Heinz recently learned.
Mark Heinz & Clair McFarlandApril 05, 2025
During Brutal Winter Die-Off, Antelope Got Lost, Trapped By Fences And Roads
Many of the antelope that froze or starved during the brutal winter of 2022-2023 got lost and died after they hit fences they couldn’t cross, according to a new University of Wyoming-led study.
Mark HeinzApril 04, 2025
Grizzly Killed A Man In Yellowstone In 1916, So They Blew It Up With Dynamite
The first documented fatal grizzly attack in Yellowstone National Park was in 1916 by a bear dubbed Old Two Toes. Federal workers responded by blowing the grizzly into oblivion using a garbage barrel booby-trapped with dynamite.
Mark HeinzApril 04, 2025
Laramie Firefighter Crushed In House Fire Determined To Make A Full Recovery
Laramie firefighter Dylan Schilt was left temporarily paralyzed when a massive stone chimney chase collapsed on him and a colleague on Feb. 28. He said Thursday he plans to make a full recovery.
Mark HeinzApril 03, 2025
Sweetwater County Turns To Hageman For Help On BLM Rock Springs Plan
It remains uncertain how the Bureau of Land Management’s plan for 3.6 million acres in south-central Wyoming will pan out. But Sweetwater County officials hope it stays to their liking.
Mark HeinzApril 02, 2025
UW To End Gun-Free Zones July 1 And Allow Concealed Guns Inside Buildings
With the repeal of Wyoming’s gun-free zones, concealed carrying of firearms will be allowed in University of Wyoming buildings starting July 1. It’s already legal to carry outside on campus grounds.
Mark HeinzApril 02, 2025
Rock Springs Hires Goat Army To Munch Its Way Through Clogged Canals
Rock Springs has weeds, brush and grass clogging vital drainage canals through the heart of town. An army of 300 goats has been let loose to gobble their way through.
Mark HeinzApril 01, 2025
Federal Fence Line Fight With Ranchers Is ‘Odd,’ Wyoming Attorney Says
An ongoing fence line fight between a South Dakota ranch family and the U.S. Forest Service has grabbed national attention. It also seems “odd,” says a Wyoming attorney who has handled land disputes.
Mark HeinzMarch 31, 2025
Missouri Trainer Wants All The Wyoming Curly-Haired Mustangs She Can Get
A Missouri horse trainer says she’ll take all the curly-haired Wyoming mustangs she can get. She says they’d be perfect for a prisoner-rehabilitation program similar to what the Wyoming Honor Farm has.
Mark HeinzMarch 30, 2025
Thousands Of Cranes Pour Into Wyoming For Spring Migration, Even A Few Whoopers
Sandhill cranes are pouring into Wyoming by the thousands during spring migration. A few rare whooping cranes are showing up too. Many cranes come here to nest and raise their young.
Mark HeinzMarch 29, 2025
Even In Wyoming, Experts Say Shooting At Someone Stealing Your Stuff Not A Good Idea
It’s best to know what the law says about using a gun to defend yourself, your home and possessions in Wyoming before opening fire, experts say. A Casper man may learn that after unloading at his own truck while a guy was stealing it.
Mark HeinzMarch 29, 2025
Wyoming Ranchers Ask Trump For Help In Family's Fence Line Fight With Feds
Wyoming ranchers have asked President Donald Trump to intervene in their daughter and son-in-law’s property dispute with the U.S. Forest Service in South Dakota.
Mark HeinzMarch 28, 2025
Lummis Wants End To ‘Silly’ Restrictions On Short-Barreled Rifles, Shotguns
Wyoming Sen. Cynthia Lummis is a backing a bill to lift 90-year-old restrictions on short-barreled rifles and shotguns. A Wyoming firearms law expert agrees, calling the restrictions “silly.”
Mark HeinzMarch 28, 2025
If Feds Delist Wolves Everywhere, Will Colorado’s Reintroduction Program Crash?
A push is underway to get wolves delisted from federal protection across the Lower 48, but it remains unclear how that might affect wolf management policies in Wyoming and Colorado.
Mark HeinzMarch 28, 2025
Man In Bear Suit Scares Off Black Bear; He’s Lucky It Wasn’t A Wyoming Grizzly
A North Carolina man uses a bear suit to scare black bears off his lawn. Some Wyomingites said trying that with a grizzly would be insane. They could maul you, or worse, try to get frisky.
Mark HeinzMarch 27, 2025
Wyoming Gun Owners Blast Supreme Court For Upholding Biden-Era ‘Ghost Gun’ Rules
Wyoming gun rights advocates are blasting a Wednesday U.S. Supreme Court decision upholding Biden-era “ghost gun” rules. The regs require serial numbers and background checks for self-made firearms.
Mark HeinzMarch 26, 2025
New Herd In Wyoming’s Red Desert Could Save Yellowstone Bison From Inbreeding
Yellowstone’s bison have merged into a “single breeding population,” according to a new study. Because of that, it might be necessary at some point to establish new herds in places like Wyoming’s Red Desert to prevent inbreeding.
Mark HeinzMarch 26, 2025
Rock Springs Land Use Plan On Hold As Congress Revises BLM Western Priorities
Hope is running high in southwest Wyoming that millions of acres of federal land won’t be locked up as Harriet Hageman pushes Congress to revise Bureau of Land Management plans across the West.
Mark HeinzMarch 24, 2025
If Colorado Wolves Keep Crossing Into Wyoming, They Might Not Last Long
A transplanted wolf showing up in Wyoming wasn’t unexpected, neither was it being killed for preying on livestock. With Wyoming’s shoot-on-sight policy for wolves in most of the state, that’s not likely to change.
Mark HeinzMarch 21, 2025
Taking Benadryl For Rattlesnake Bites Can Get You Killed, Medical Expert Says
An online rumor that children’s Benadryl can save people from rattlesnake bites has gone viral around Wyoming. But it’s false, and a medical expert says taking it after a rattler bites could get you killed.
Mark HeinzMarch 21, 2025
Former Wyoming Resident Busted For Illegal Deer Killing 26 Years Later
A former Wyoming resident who had moved to Alabama was busted for illegally killing a deer 26 years after the fact, and after dodging a bench warrant for 24 years.
Mark HeinzMarch 20, 2025