The National Park Service provides free maps of the Great Basin National Park. The travel site PickATrail.com also offers a free topographic map taken from the USGS 7.5 minute series.
The digital map from the NPS website covers both the low and high-elevation areas inside the park as well as the location of the visitor center, camping grounds and the available facilities on each location. The map from PickATrail shows large-scale details of the famous peaks and caves in the Great Basin National Park, including Kious Springs, Minerva and Arch Canyons, Lehman Caves and the Windy and Wheeler Peak. The maps are available in PDF format and may be viewed online.