About east of the campgrounds on Kuwasa Lake is the site where the first of the Yukon Ice Patches was discovered in 1997 on mountain Thandlät. The Yukon Ice Patches are studied by archaeologists in partnership with six Yukon First Nations, on whose traditional territory the ice patches were found. They include the Carcross/Tagish First Nation, the Kwanlin Dün First Nation, the Ta'an Kwäch'än Council, the Champagne and Aishihik First Nations, the Kluane First Nation, and the Teslin Tlingit Council. The wooden dart shaft fragment that was recovered was radiocarbon dated to 4360 ± 50 14C yr BP (TO 6870).: