At one time, there was a granite quarry on the east side of Crystal Lake. Near the turn of the century, steamboats barged stones across the lake. The park's beach house was made of granite quarried beside the lake. It was constructed in the late thirties by the CCC . It has a very unusual architectural design and received prominent recognition the year it was built.
Crystal Lake is approximately three miles long and about one mile in width.
In some places it is known to be more than 100 feet deep. It is a glacial lake beautifully situated among roughhewn mountain sides. The beach area has almost a mile of sandy shoreline with a marked swimming area. The large granite bathhouse has rest rooms, changing areas, and a concession stand. There are approximately 40 free standing charcoal grills, nearly 80 picnic tables, a play area, and lots of parking space.