The Corrigan Walkway Trail at South Park near Pittsburgh, Pennsylvania is a heavily-trafficked 4 mile out-and-back hike through the middle of South Park along Corrigan Drive.
The trail is paved and mostly flat the entire way with minimal grade uphill if hiking south to north. You can hop on the Bison Ridge Loop Trail from various points on this trail as well as the Maple Spring Loop Trail.
Biking: you can bike in the bike lane adjacent to the trail on the road, but no biking on the trail itself.
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