John Gookin is the Curriculum Manager at the National Outdoor Leadership School (NOLS). He is a charter recipient of the NOLS Instructor Award and has taught at NOLS since 1981, where he teaches caving among many other areas.

John is an officer with the National Speleological Society (NSS) and has been the Rocky Mountain Regional Coordinator for the NSS's National Cave Rescue Commission (NCRC) for 6 years. He's presented papers on cave rescue, cave conservation, and caver education at the National Cave Management Symposium.

John's specialty on the 1999 OAG expedition will be ascending systems, mapping, and photography.

Liz Tuohy, NOLS Instructor

Liz Tuohy lives in Lander, Wyoming and has been caving for 4 years, mostly in the Southwest U.S., including Guadalupe Ridge. She has also caved in Wyoming and Montana. She continues to be awed by caves and by the natural systems that create them. In the last year Liz wrote and edited Leave No Trace Skills and Ethics:Caving , a guide to current low-impact caving techniques. Cave conservation and public education about caves are as important to her as caving itself.

Liz has been involved in outdoor education for the last 9 years, and working as an instructor for the National Outdoor Leadership School for the last five. In addition to caving, she backpacks, rock climbs and mountaineers, mostly in the Rocky Mountain area. Liz is currently combining her instructing work with a job in the NOLS Admissions Office.