home : Site map

About the Bar T Bar Ranch, Southwest bull breeders
About us : Land stewardship and the Diablo Trust : Bar T Bar Ranch
About the Bar T Bar Ranch, Southwest bull breeders

“The challenge in maintaining open space is to pay for it by finding options that ensure long-term economic viability. We really are trying to think outside the box.”

—Bob Prosser, Bar T Bar Ranch

The Prosser Family
P.O. Box 190
Winslow, AZ 86047
928.289.2619 (winter) 928.477.2458 (summer) info@bartbar.com

About teh Bar T Bar Ranch : Southwest bull sales

About us

Bar T Bar brand

Land Stewardship

Bob and Judy Prosser were recently awarded the 2016 Range Managers of the Year by the Arizona Section Society of Range Management. Judy’s father, Ernest Chilson, received this award in the late 1960s.

The Diablo Trust: A collaborative, grass roots, land-management team

The Diablo Trust, a collaborative, grass-roots, land-management team The Diablo Trust was formed in 1993 by the Metzger family, owners of the Flying M Ranch, and the Prosser family, owners of the Bar T Bar Ranch, to create a collaborative process for developing ideas to help protect open spaces and healthy habitats. The Trust is a 501(c)(3) nonprofit organization. Its mission is to sustain healthy land resources and open space through education and active involvement of the broader community in maintaining ranches as long-term, economically viable land stewardship enterprises.

Diablo Canyon separates the Bar T Bar and Flying m Ranches

The Trust currently relies on a core group of individuals for operation and research, and without membership fees or dues it relies on contributions to fund their programs.

In 1998, the Diablo Trust was designated a National Partnership for Reinventing Government Laboratory. The significance of this designation is that all federal agencies are to cooperate with the Trust “within the constraints of statute.” Its goal is to “demonstrate innovative approaches to restore and maintain the natural processes that create and protect a healthy, unfragmented landscape to support a diverse flourishing community of human, plant and animal life in the Diablo Trust land area.”


The Trust was awarded the 2006 U.S. Forest Service National Rangeland Management Award and the 2006 National Cattlemen’s Beef Association Regional Environmental Stewardship Award.