If you are ok with dry camping there are a few groups who do that, but under another venue.. There is the Gem and Mineral club, the Las Vegas chapter of Gold Prospectors of America and the Golds Searchers of Southern NV. All have outings in decent weather, some hard core many just social. The LVGPAA is going up to northern NV in a couple weeks, stay at a BLM roadside rest, free, and do some prospecting. Also up there is Wheeler peak @ 12,500 ft you can drive to and one of the darkest places in the USA, they have telescope things...plus the underground caves.
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