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. Hes 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
Montana Suspected Fatal Grizzly Attack Happened Same Day As Yellowstone Mauling
A suspected fatal grizzly attack in Glacier National Park is thought to have happened the same day two brothers were mauled by a grizzly in Yellowstone. Outdoorsman say the attacks are the beginning of “human-bear conflict season."
Mark HeinzMay 08, 2026
Day After Grizzly Attack, Dimwitted Tourist Takes Video Of Bear From 5 Feet Away
A day after two brothers were mauled by a grizzly in Yellowstone, a dimwitted tourist was spotted five feet from a bear taking video on his phone. Retired biologist Gary Gaston said the scene was “so absurd” he had to leave.
Mark HeinzMay 08, 2026
Man Cited For Trespass After 7-Year-Old Son Grabs Antlers With Tracking Device
To nab trespassers hunting shed antlers on a ranch in Hot Springs County, Game and Fish put tracking devices in antlers and planted them around the ranch. The first one was picked up by a local 7-year-old boy, which got his father a ticket.
Mark HeinzMay 08, 2026
Yellowstone Grizzly Still Has Cubs With Her Past Age 3, When Most Leave At 2
A popular female grizzly called Beryl in Yellowstone still has two cubs with her that are roughly 3.5 years old, and nearly as big as her. Most cubs leave around age 2, but "it’s nearly impossible to explain why” some stay longer, says a bear biologist.
Mark HeinzMay 07, 2026
Day After Bear Attack, Rangers Yelled At By Tourists Too Close To Grizzlies
The day after two hikers were mauled by a grizzly in Yellowstone, tourists yelled at rangers who were warning them to get away from grizzlies and wolves. “They were just walking right up to them," said a Park Service biologist.
Mark HeinzMay 07, 2026
Grizzly Roars Echo As Bear, Wolf Clash Over Yellowstone Bison Carcass
The roars of a grizzly echoed from a riverbank in Yellowstone National Park on Sunday, as it postured with a wolf over a bison carcass. A biologist said actual fights between the species are rare because neither wants to risk injury.
Mark HeinzMay 05, 2026
