To get a list of topographical maps that cover a particular area, drag the orange map icon to your point of interest then click the "Find Maps" button. You will be able to download your map on the next page. The 2025 NCKMS Symposium's map database currently contains 273,140 maps. The catalog was last updated on Friday, November 21, 2025.
Bristlecone Convention Center
Great Basin NP
The official event schedule for the 2025 NCKMS has now been updated. Please check our schedule page or download a PDF to your mobile device.
Since 1941 the NSS has been at the forefront of cave science, conservation, and exploration. Join our 8,500+ member community and come caving.
Lehman Caves attracts tens of thousands of visitors to eastern Nevada yearly, a trend that began not long after their discovery in the late 1880s. For over 60 years, Lehman Caves National Monument protected these underground wonders, with their unique geology and ecology. And today, they remain protected as part of Great Basin National Park.
The 2016 NSS 75th anniversary convention in Ely, Nevada will include tours of this beautiful cave.