Meet The Team

James O’Neill

James is a seasoned backpacking enthusiast whose love for camping and exploration was kindled during his childhood. With an enduring passion for the Sierra Nevadas, James has, for decades, considered these rugged mountains his home away from home, sharing his adventures with friends, fellow enthusiasts, family, and, for the past decade, his cherished canine companion, Maya. During moments away from the trail, James finds fulfillment in coaching little league and dedicating time to his wife and children.

In addition to his extensive personal explorations, James brings a wealth of military experience to his role as a guide, having served in the Marine Corps. His tenure involved teaching land navigation as well as participating in mountain training in the Eastern Sierra Nevadas where he honed essential skills. James, known for his enthusiasm for mentoring, takes great pleasure in assisting individuals in overcoming new challenges and achieving their goals.

Whether you are a novice yearning for the tranquility of nature or an experienced adventurer in search of a heightened challenge, James and Sierra Summit Expeditions, is steadfast in tailoring an experience that aligns with your proficiency. Their objective is to kindle the flame of exploration amidst the untamed beauty of the outdoors, fostering enduring memories, and cultivating new friendships along the way.

Brett Baker

Brett is a dedicated backpacking guide and ardent outdoor enthusiast whose profound connection with the wilderness traces back to his childhood camping escapades and traversing the breathtaking Sierra Nevadas. In every step he takes, Brett's love for the natural world is deeply ingrained. With an extensive wealth of knowledge and an impassioned desire to share it, Brett extends a cordial invitation to accompany him on an exploration of the stunning landscapes and hidden gems that the Sierra Nevadas have to offer.

What distinguishes Brett is not only his remarkable expertise but also his profound appreciation for the finer nuances of nature. He derives joy from casting a line and fishing in the pristine lakes and streams scattered throughout the Sierra Nevadas. Accompanied by his loyal companion, Katie the dog, Brett seamlessly integrates the thrill of backpacking with the simple joys of nature. Whether you are a seasoned backpacker or a novice, Brett is here to impart his extensive experience, transforming each expedition into an indelible journey through the Sierra Nevadas.

In addition to his commitment to outdoor pursuits, Brett is passing on his passion for the outdoors to the next generation, particularly evident in his dedication to sharing these experiences with his son. As he leads expeditions through the Sierra Nevadas, Brett is not only fostering a love for nature within himself but also extending this legacy to his family. Get prepared to embark on an adventure where passion converges with expertise, and each trail unveils a new dimension of discovery.