I thought I would share the URLs of a number of commercial establishments that offer astronomical viewing with very dark skies. Most of these are located in or near New Mexico.
http://www.csspdarkskyfund.org/home/stargazing_information [Cherry Springs PA]
https://lennox-addington.on.ca/explore/dark-sky-viewing-area [Ontario Canada]
And in Chile: http://www.haciendalosandes.com/en/astronomy.html
Source: Lynn Rice of New Mexico Skies, which now (sadly) only does remote hosting — in other words, people far away use the telescopes at NMS via fast internet connections, for a fee.
New Mexico Skies, Inc. 9 Contentment Crest #182 Mayhill NM 88339