A frustrating attempt to follow the unmarked Nez Perce Trail compelled Cheryl Wilfong to write a guidebook. She drew on her skills as a mathematician, accountant, and managing editor to organize the work. While studying for a Master's degree in Intercultural Management, Wilfong worked with Cakchiquel indigenas in Guatemala. As a VISTA volunteer, she worked with Navajo migrants and Southern Paiutes. When she isn't traveling, Wilfong gardens and meditates in Vermont.