Tamarack is set in an almost Disneyesque Sierra location. I've stayed in a cabin here and have eaten at the Lakefront many times and it's one of my favorite places, shared with family and friends, of all time.
Stayed here in the Fall in a big 2-bedroom cabin (#14, I believe) that was comfortable and sported a great porch. It's a short drive from the town of Mammoth, but not at all inconvenient - in summer and Fall anyway. Lakefront restaurant and Tamarack Lodge are utterly charming; dinner excellent at the restaurant. Even if you don't stay here - drive up and enjoy the lakes & mountain views from this historic and beautiful place.