Attempted to hike the Quarry Trail, but no markings until past the observation tower, after following the red trail for about a mile. Used the downloaded map to follow the red trail. Hike was still great - hilly and varied elevation. Would consider this more of a moderate trail.

For those looking to get to the trail, at the parking lot near the concession stand, walk south to the observation deck facing south side. The blue trail runs just in front of this observation deck. Follow this to the red trail. You’ll then see markings for the quarry trail.