Bouldering Logistics Getting to the Mill McConnell's Mill State Park is a classic gritty sandstone bouldering area less than an hour north of the Pittsburgh Pennsylvania metro area. Maps of McConnell's Mill are available at the Park office on McConnell's Mill Road. Seasons Spring and Fall are the prime bouldering seasons. After a soaking rain the Mill may take days to dry out. In Summer, July especially, the due point can get higher than the temperature, add the humidity and the cool rock causes condensation to form on the rock making for poor conditions.
Winter can be the driest season when there are warm breaks in the weather.
Contact a park employee or dial 911. Many climbers at the Mill carry cell phones. You may have to be above the Rocks to place a cell phone call. This phone dials 911 only, please use only for true emergencies. The nearest hospital is St. Francis Hospital in New Castle or Butler Memorial Hospital in Butler.