Tom Martin
Martin has been hiking in Grand Canyon from river rafting trips since 1969. He has participated on scientific rafting trips as a field technician, worked as a commercial river guide, and participated on private rafting trips.
Martin has been hiking in Grand Canyon from river rafting trips since 1969. He has participated on scientific rafting trips as a field technician, worked as a commercial river guide, and participated on private rafting trips. See less
