According to the new book “The Fur Farms of Alaska”, the last fur farm in the state closed in 1993. It was said to be a fox farm called Whitestone Farms in Delta Junction, AK. 
The book also notes fur farming in Alaska was largely unregulated and lacking records, so it is possible smaller fur farms remain.
Send any info to whistleblower [at] coalitionagainstfurfarms.com.