15700 Old Oak Ranch Road Sonora, CA 95370 | (209) 532–3691

Sierra Outdoor School

Part of the Clovis Unified School District

Facilities Staff

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Ryan Cook
Ryan enjoys building and fixing almost anything, so he keeps busy here. He also loves being outdoors, and at SOS we get all four seasons. For recreation, Ryan goes hiking, mountain biking, plays various sports, and just about anything else.

Austin Chipponeri

Austin was born and raised in Sonora, Ca. Austin started working at Sierra Outdoor School in 2016. His hobbies include hanging out with family, playing softball and going to concerts.

Nelson Pinheiro

Ray Lassor
Ray is the guy who keeps the many SOS vehicles operating safely, including our fleet of buses. He can also be found helping out on all sorts of maintenance and facility projects. When not at work, you might find him on a bicycle or a motorcycle. Long ago he was given the nature name "Sting Ray".