No site in Pennsylvania's access file falls on Big Sewickley Creek, so the way in is public ground and road crossings rather than a marked landing. 4 blocks of public land front Big Sewickley Creek, and 1.7 of its 11.2 mapped miles run through them.
Linbrook Woodlands — land trust or conservancy, 0.93 mi of this river, 179 acres in all
Ambridge Fireman's Park — city land, 0.48 mi of this river, 11 acres in all
Lilly — land trust or conservancy, 0.26 mi of this river, 49 acres in all
Mound Street Playground — city land, 0.07 mi of this river, 1 acre 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.