I just ran across this unanswered question about the Evergreen Mint. I realize it's been 6 years since the question was asked but I thought I'd answer just in case someone is interested.
According to the owner of the Alaska Mint, the Evergreen Mint in Alaska was minting medallions between the years of 1995 and 2000.
I have some of Evergreen's Medallions. While they aren't as finished as the Alaska Mint medallions, they are nice products. They don't have dates or visible artist initials on them. The odd thing is, they have identical art as Alaska Mint. Something seriously odd about that.
I'm trying to find a way to get authentication or certification documents for the coins. For example, something from the Evergreen Mint that states that a particular coin has 1oz 99.993% silver, like Alaska Mint does.
So, if anyone has more info on the former owners, I'd be interested. Thanks.