Rancho Mastatal is an environmental learning and sustainable living center, rural sanctuary and lodge located in and on the edge of the last remaining virgin rainforest of Costa Rica’s beautiful Puriscal County. They practice, promote and teach about living responsibly in the Tropics while educating visitors about the significance and majesty of the world’s disappearing tropical forests. They to help lead local efforts in conservation, education, natural medicine and community growth.

The visionaries and proprietors of Mastatal, Tim and Robin began the project in 2001. Along with hundreds of volunteers and interns they have accomplished a great deal both on the Ranch and in the community! Some of their projects include:


Human Waste Biodigester

Composting Toilets

Solar Energy systems

The ranch has several facilities for guests, volunteers and interns that were built using natural building techniques or modifying existing conventional construction with natural building techniques. These structures include:

Leo's House

The Hooch

The Hankey

La Chosa

La Casucha

La Casa de Tiburon

Starboard Cork

The Classroom

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