edicine Horse Ranch is located on a historic 1000-acre fifth generation working cattle and sheep ranch in beautiful coastal Tomales CA. The Marshall brothers journeyed from Ireland and settled the original “Home Ranch” in 1852.  Today Gary Thornton and his daughter Marissa, who revitalized the dairy with her flock of sheep and jersey cows, manage the ranch property.

Bleating Heart Creamery leases a newly renovated building next to the dairy.  The creamery purchases its milk from Marissa and other local dairies for it’s handcrafted ( and award winning) cheeses.  Our ranch guests may enjoy educational tours ( by appointment) which may include cheese tasting and a visit to the dairy parlor.

Medicine Horse Ranch offers equine -guided education programs for individuals and groups, and customed designed leadership programs for teams, business organizations and corporations,  (please see our Schedule Page for public workshop details).

We are the Northern CA center for Adventures in Awareness™ providing access to AIA study opportunities for individuals seeking personal and professional development, including field study hours and preparatory modules for credentialing/certification as an equine interactive professional.

Medicine Horse Ranch/ Alyssa Aubrey is the HorseDream®USA License holder and facilitates HorseDream Licensed Partner Training Programs for those interested in offering equine leadership programs to businesses, organizations and corporations.


“The sound of thundering hoof beats across the land is instantly recognizable and unmistakable to the human ear. A wild and running horse is the heart shaped geography that awakens our ancient knowing and beckons our freedom.”   ~ Alyssa Aubrey




2017 Schedule of Classes and Events


One Day Introduction Programs:

‘Horse Sense’ ~ An Introduction to Equine Guided Education ~ Feb 11, Mar 18, Apr 15, May 6, June 3, Sept 23

Three Day Immersion Workshops: 

The Equine Guide to the 4-Agreements ~Circle Group, begins March 25

The Equine Guide to the 4-Agreements ~ May 5-7

The Equine Perspective ~ July 28-30

Discover Heart Portals ~  Aug 18-20

The Realms of Leadership ~ Oct 13-15

“In Hand” with Mike Bridges ~ (horsemanship)  Apr 4-6, Aug 8-10, Sept 12-14