ATA is a non-profit Oregon group formed by community residents to develop a system of hiking, mountain biking, and equestrian trails in the mountains and meadows of the Applegate and Rogue valleys. We cooperate with public land agencies, community organizations, and private landowners to preserve and connect historic trails for the broader community and generations to come.

Our aim is to conserve our valley's valuable resources, the land, the views, and the biodiversity,

for the non-motorized enjoyment of people of all ages and ability.

Our Mission

We create and preserve non-motorized trails in the Applegate Valley, providing recreational and educational access to public lands while protecting our natural resources.

Board of Directors

Mark Hamlin, Chair:​​​​ Mark is an avid hiker. He and his wife moved to the Applegate in 2019, that is into a converted barn they call home.  Coming here after 32 years in the Sierra Nevada Foothills, and another barn conversion, they are pleased to call the Applgate Valley home.  

David Calahan, Director (center): His love for the outdoors drove this native Oregonian to search for and find an isolated eighty-acre homestead on the sunny side of Wellington Butte over forty years ago. David shares this little piece of heaven with his wife, Barbara Kostal. Retirement from the Medford Fire Department allows him to pursue his passion for renewable energy, hiking trails and the ART. Contact David at


JStuart Osmus, Director (right): Stuart has lived in the Applegate Valley since 2014. He has spent much of his life outdoors with hiking, backpacking, camping, fishing and photography being some of his passions. He grew up in Arizona, moved to Colorado, then moved to southern Oregon about thirty years ago. He retired in 2016 after a 40 year career as a land surveyor. He lives on a small farm next to the river with three humans, four dogs, four cats and 30 chickens. Contact Stuart at

Geoff Weaver, Director: Geoff lives offgrid on 170 acres in the Applegate and is a hiker and mountain biker. He is part of the Oregon State University Land Steward Workshop program and an expert on off grid systems and building to the high-efficency Passive House Standard that helps people live year-round using minimal energy.

Norm Young, Director:  Norm has been an avid para-glider in the Applegate Valley for many years.   He served several years on the Board of the para-gliders association.