I've always liked this one. Drive in access 20+ miles...
I was going to guess somewhere near the Tetons until I quoted you, and Upper Green River Lakes came up in the image link. I have been kind of close to that area, wish I had stopped!
It's about 20-25 east of Cora, Wyoming, between Jackson and Pinedale. About 90 miles from Jackson in the Wind River Range. It's called, appropriately, Squaretop.