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Experience From the High Deserts of Texas to the Rocky Mountain West.

For 20 years, our family owned and managed Circle Ranch, 32,000 acres of high desert located in the Sierra Diablo Mountains of far-West Texas. Our goal? Leaving the land more diverse, and therefore healthier, than we found it.

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Our Philosophy

Wildlife and habitat only prosper when their ecosystem is in balance.

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Our Resources

The objective of biodiversity conservation is to maintain viable native animal and plant populations of all kind.

Elk Removals Featured

Are Elk Native to Texas--Historical and Archaeological Evidence for the Natural Occurence of Elk in Texas

This paper began as an effort to persuade Texas Parks and Wildlife Department (TPWD) to cease its efforts to eradicate elk on the state lands which it manages in far-West Texas. Our assumption was that TPWD was acting out of a sincere misunderstanding of science, which could be corrected.

Resources

The Hidden Talents OF Natures Unloved Animals

Whether it’s their bold appearance, their unsavory hygiene habits, or their unexpected behavior, certain animals suffer from an image problem. Of course, their standout attributes can also be their superpowers.

Resources

A Trail Camera Compilation Of Florida's Wildlife by Ferns.n.fawns

Great videos from the Florida swamps. A Trail Camera Compilation Of Florida's Wildlife by Ferns.n.fawns byu/ExoticShock inmegafaunarewilding

Resources

These Invasive Species Are As Close As Georgia. What To Look For and Know About Each

"Let me introduce you to two insects that have been spotted in Georgia that we need to be on the lookout for"

Cattle

Colorado Deploys New Wildfire-Prevention Tool: Cows

Colorado, though, as it happens, already has something that can help prevent fires, at least on the open grasslands, and that something may come as an udder surprise to some:

Resources

How to Revive a Burned Forest? Rebuild the Tree Supply Chain

Sheep Creek Ranch is one of Mast’s first projects, and the company has three more underway in Oregon and California.

Newsletter

Restoring Biodiversity - 7/29/2025

How to rebuild a burned forest. A hugely significant discovery which offers a new perspective on the earliest human occupation. And more...

Resources

Onlookers Watch as Large Bison Dies in Scalding Yellowstone Hot Spring

Onlookers at one of Yellowstone National Park's most popular sites watched a large bison take its final steps into a scalding hot spring and die in a horrifying reminder of what can happen away from the safety of marked paths.

Resources

Archaeologists Found 11,500-Year-Old Tools That Reveal an Incredible Human Adventure

They took a one-way ticket through Doggerland

Conservation

Chihuahuas and Keyline

“Chichuahuas and Keyline” explains Chocolate the Keyline Dog’s take on contour subsoil plowing. NOTE: this post was originally published to this site on September 13, 2017, and again on March 10, 2022.

Newsletter

Restoring Biodiversity - 7/22/2025

It’s time to embrace (horse) rewilding. North America has lost around a quarter of its avian population since 1970. Hiker survives Mountain Lion encounter. And more…

Wild Horse Fire Brigade

Rewilding Versus Fertility Control: A Clash of Visions For Wild Horse Management

Mounting evidence suggests fertility control’s genetic and ecological flaws make it an unsustainable solution.

Resources

Hiker Survives Mountain Lion Encounter

A hiker is taking a sigh of relief after coming face to face with a mountain lion. CBS News Los Angeles' Gio Insignares reports.

Resources

A Sweeping New Report Shows U.S. Birds Declining Sharply Across a Range of Habitats

Scientists checked in on species all over the country for the latest State of the Birds report. Nearly everywhere they looked, birds were struggling—including some that have been resilient in the past.

"Invasion Biology"

The Life and Legend of America's Most Famous Wild Horse

Picasso is a nearly 30-year-old pinto who still roams free in the Sand Wash Basin in northwestern Colorado. NOTE: this post was originally published to this site on April 25, 2022

Resources

Restoring Biodiversity - 7/15/2025

Thank you for subscribing to the Pitchstone Waters weekly newsletter. Here is what we’ve been reading, watching and writing about over the past week… Articles U.S. Halts Livestock Imports From Mexico Again. Here Is The Reason Why The U.S. has again halted livestock imports from Mexico after

New World screwworm

U.S. Halts Livestock Imports From Mexico Again. Here Is The Reason Why

The U.S. has again halted livestock imports from Mexico after the parasitic New World screwworm fly closer to the border.

Resources

The Miracle Dogs of Chernobyl Have Evolved Into Something New, Studies Show

Despite dealing with extremely cold temperatures, food scarcity, and long-term radiation exposure, the Chernobyl dogs aren’t just surviving—they’re thriving.

Tawny Crazy Ant

These 'Crazy' Invasive Florida Pests Attack Mammals, Birds and Create Giant Supercolonies

According to Texas A&M University's Urban and Structural Entomology Program, after experiencing the tawny crazy ant, most residents prefer the fire ant.

"Invasion Biology"

Elk Restoration

“There is perhaps no higher calling for a wildlife conservation organization than restoring extirpated wildlife species back to their historic ranges.”

wolves and cattle

Wolves Wreak Havoc on Cattle Herds in California

Ranchers say their hands are tied as reintroduced wolves—listed as endangered—are feasting on cattle instead of hunting elk and deer.

Newsletter

Restoring Biodiversity - 7/8/2025

Scientists Put Motion Cameras Along the US-Mexico Border To Spy on Wildlife. The screwworm could be back as soon as this summer. A wonderful video from the Mule Deer Foundation. And more….