No site in Pennsylvania's access file falls on Allegheny Creek, so the way in is public ground and road crossings rather than a marked landing. 3 blocks of public land front Allegheny Creek, and 0.8 of its 10.8 mapped miles run through them.
Allegheny Aqueduct Historical Park — city land, 0.27 mi of this river, 37 acres in all
William Penn State Forest — state natural-resources agency, 0.24 mi of this river, 1,359 acres in all
William Penn State Forest — another state agency, 0.24 mi of this river, 1,032 acres in all
Ownership from PAD-US as the state publishes it. Where a block has its own page, the name
links to it. The river miles are how far this river's drawn axis runs inside each block, measured here;
the acreage is the whole unit's, most of which is nowhere near this water.