And while we are talking about Atlin: from the December 14, 1915 Fairbanks Daily Times, the predecessor to the Fairbanks Daily News-Miner:
Despite fairly strenuous efforts, WC is unable to confirm, corroborate or even find independent reference to this report. A crater 50 feet in diameter? Really? That would have been an extremely loud explosion, but there don’t seem to be other reports.
WC invites readers with any substantiation to offer the links.