Climber.Org Roster Entry: Mark OBrien

To post YOUR contact info, put whatever info you like in the Roster Entry form.
Your email address is kept private, but people can contact you through a web form.

Email Address: on file - send a message to Mark OBrien

City, State, Zip: Los Angeles, CA

I enjoy all kinds of climbing but prefer alpine and ice. I am always looking for safe, experienced climbers to join me on trips to Tahquitz, Josh, the Sierras, Lee Vining, Yosemite, Ouray, the Cascades, etc.

To submit your contact info, please fill in the Roster Entry form or contact the webmaster.