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The Humans


Tamarix belongs to Boulder Mountain and the waters that course these dense forests and deep canyons; the magic of language; water and shadow; the scent of sagebrush; the feeling of sandstone on bare feet; the Oak-groves; his legendary cat Nithi; Grief, Longing, and Death; as well as Love, Belonging, and Life.  

Tamarix has been claimed by the traditions of wilderness guiding, bardic poetry, rogue wine-drunk taoism, cat-worship, folk herbalism, and animistic witchcraft, as well as the deep stories of the dark trickster, the hunter, and the death doula.

As a wilderness rites-of-passage guide, Tamarix brings his 10+ years experience as a wilderness therapy guide, his intimate relationship with the non-human world, and his deep trust in both the wisdom of wild spaces and the fasting ceremony utilized by the School of Lost Borders.


Tamarix attended the SLB month-long training in 2017, the Animas Valley Institute’s YLSI (yearlong soulcraft intensive) in 2017-18, and has been assisting fasts for the SLB and the Practice of Living and Dying as often as he can. Tamarix established a rites-of-passage program for Legacy Outdoor Adventures and Juniper Canyon Recovery Center for Women utilizing the SLB model, is the senior editor of the Circles on the Mountain journal of the Wilderness Guides Council, founded the Oak and Bone School of Belonging and Remembrance, and is working to create more ways to bring the magic of this ceremony to his people.




Angelo Joseph Lazenka began guiding vision fasts in 1984 and often says that the work grew him up and now he is asking it to grow him down into the rich territory of elderhood. 


He began working as a guide with the School of Lost Borders in 1993 and from 2003 - 2018 held a variety of titles including: Guide, Teacher, Director, President, and Board Member. Now, in his late 60's having left administrative responsibilities, he continues to guide and train while carrying the question of what it truly means to pass the work onto the next generation.

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Petra Lentz-Snow has been involved in vision fasts and wilderness rites of passage programs for more than 30 years. She is a guide, trainer and active steward of the School of Lost Borders, where she also served as Executive Director for eight years, and a former Netkeeper for the Wilderness Guides Council network. 

Petra is a former naturopath and first generation immigrant from Germany, and as such, part of the most recent generation of settlers in the Americas.  She came to California at age 28 and is deeply grateful to live and work in the high desert of Paiute Nuumi land in the Eastern Sierra Nevada, and to call Payahuunadü, “The land of flowing waters” her home.

Petra is mother to three adult children and a breast cancer survivor.  She is passionate about facilitating and seeding initiatory experiences and threshold practices in modern culture. Areas of special focus include womxn rites; the work with Illness, Loss and Death; and the Art of Truly Living. Petra holds space as woman, mother, guide, art maker and cancer initiate and most importantly as someone who is deeply grateful to be alive at this time. A lover, truth seeker and speaker, deep listener, menopausal halfwit and lifelong learner, she lives by the grace of a heart that keeps expanding.