Acknowledgments

The National Park Service, Water Rights Branch, in Fort Collins, Colorado, funded the study. William Van Liew (National Park Service, Fort Collins, Colorado) assisted in the design. Gretchen Baker (National Park Service, Great Basin National Park, Baker, Nevada) provided guidance on all the necessary forms needed to sample water from Lehman Caves and the three springs, escorted us into and out of Lehman Caves and assisted in the collection of the water sample in the cave. Mrs. Baker also provided written information on the reconstruction of the water-collection system of Cave Springs and on historical chemical and stable isotope analyses of samples from Cave Springs, and ascertained the origin of the limestone gravel at Cave Springs.