Just opposite the switchback to Washington’s Landing, there is a free lot for about 8 vehicles. I’ve used it for this purpose, and it has worked fine for me. Distance to town is about 2.5 miles. Millvale Riverfront Park is an option as well. Take 28 North to Millvale Exit. At end of ramp (stop sign) turn left. At stop sign, veer generally left (as if you were returning to Route 28 INBOUND). Just past sharp left for Route 28 North, take left under RR underpass towards park. Cross RR, at stop turn right, park between picnic shelter and TRRA building in the large lot. Trail is on the river side of the Three Rivers Rowing Assn building. Distance to town is a little longer, but you’ll get to see the (soon to be opened) new Millvale Connector Trail.