At the Homestake Mine in Lead, scientists experiment in areas like, biology, engineering and geology. They work in underground facilities that were once used to mine gold.
Research is conducted here year round, they offer tours and exhibits to the public.
Talk to Michael Runge if you have any questions! His number and email are on the above site.
"Homestake Gold Mine," https://www.cbsnews.com/news/south-dakota-mine-gets-repurposed-as-underground-science-lab/