Management of Subterranean Ecosystems in Extreme Environments
Monte Neva Hot Springs

Map coordinates:  39.0303, -116.666
Water temperature:   140.9°F
Site ID:   nv_dpb

Diana's Punch Bowl & Pott's Ranch

Diana's Punch Bowl & Pott's Ranch. Image courtesy of the Nevada Commission on Tourism.

Dianas Punch Bowl (Dianna's, Devils) (Sec. 22, T14N, R47E) is a cup-shaped depression about 15 m in diameter at the top of a domelike hill of travertine about 183 m in diameter. Warm water in the pool of the bowl is about 9 m below the rim, while the top of the hill is about 23 m above the level of Monitor Valley.

A small warm spring, about 43-49°C in temperature, issues from the southwest corner of the travertine dome (Fiero, 1968). Temperatures up to 59°C have been reported, and the estimated minimum reservoir temperature by several chemical geothermometers is 88-97.7°C (Mariner and others, 1974; Hose and Taylor, 1974).

Very slightly anomalous radioactivity (16 μR/hr) is reported by Wollenberg (1974b). The thermal area lies on a north-trending, concealed fault in the central part of Monitor Valley (Stewart and Carlson, 1974; Fiero, 1968). Spurr (1905, p. 257) describes a report by J.L. Butler that the water level had lowered and water became cooler in the years prior to 1905. Also, he reported that more gas was formerly emitted and occasional flames were seen.

Dianas_Punch_Bowl.pdf Get Topo Map On the Web New Hotspring Search

Diana's Punch Bowl & Pott's Ranch


  1. Sample date:1966-12-09
  2. Sodium (Na):55
  3. Potassium (K):16
  4. Lab-test pH:7.3
  5. Calcium (Ca):52
  6. Total dissolved solids:399
  7. Magnesium (Mg):11
  8. Iron (Fe):n/a
  9. Strontium (Sr):n/a
  10. Lithium (Li):0.09
  11. Boron (B):0.32
  12. Silica (SiO2):43
  13. Bicarbonate (HCO3):300
  14. Sulfate (SO4):62
  15. Chloride (Cl):10
  16. Fluoride (F):n/a


Image by Dr. Jean K. Krejca, Zara Environmental LLC

Cave ecosystems are often dependent on organic material carried in by water, which serves as the primary food source for the environment. In arid climates with minimal surface rainfall, the input of organic matter and nutrients into caves becomes limited, affecting the overall energy flow within these environments. The intricate interplay between surface conditions and cave biota presents unique management challenges for modern cave biologists. Image courtesy of Dr. Jean K. Krejca, Zara Environmental LLC.

Spirit Cave Mummy

Spirit Cave mummy

The Spirit Cave mummy is the oldest human mummy found in North America. It was discovered in 1940 in Spirit Cave, 13 miles east of Fallon, Nevada by the husband-and-wife archaeological team of Sydney and Georgia Wheeler.

The Wheelers, working for the Nevada State Parks Commission, were surveying possible archaeological sites to prevent their loss due to guano mining. Upon entering Spirit Cave they discovered the remains of two people wrapped in tule matting. One set of remains, buried deeper than the other, had been partially mummified (the head and right shoulder). The Wheelers, with the assistance of local residents, recovered a total of sixty-seven artifacts from the cave.

Symposium Merchandise

Troglodyte Playing Cards

We have no idea what these will look like yet, but we couldn't think of hosting NCKMS in Nevada without offering some themed-out playing cards. There's a good chance the card backs will feature a cave animal of the year, but we still have some time to figure it out.


JUNE 29, 2023
NCKMS Steering Committee Chooses Ely, Nevada as Host City for 2025 Symposium
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Advance registration for the 2025 symposium is expected to open in mid-2024. We will send an email to past attendees when that system comes online.

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