No site in New York's access file falls on the Mamaroneck River, so the way in is public ground and road crossings rather than a marked landing. 16 blocks of public land front the Mamaroneck River, and 8.3 of its 11.4 mapped miles run through them.
County Of Westchester Land — county land, 3.36 mi of this river, 5,742 acres in all, access unrecorded
Town Of Harrison Land — city land, 0.85 mi of this river, 246 acres in all, access unrecorded
John A Passidomu Veterans Memorial Park — local holder not recorded, 0.82 mi of this river, 45 acres in all
Village Of Mamaroneck Land — city land, 0.7 mi of this river, 52 acres in all
City Of White Plains Land — city land, 0.48 mi of this river, 621 acres in all, access unrecorded
White Plains City Lands — city land, 0.48 mi of this river, 138 acres in all
Delfino Park — city land, 0.43 mi of this river, 19 acres in all
Village Of Mamaroneck Land — city land, 0.21 mi of this river, 18 acres in all, access unrecorded
Westchester Joint Water Works Land — regional water district, 0.18 mi of this river, 2 acres in all, access unrecorded
Columbus Park (Station Park) — city land, 0.16 mi of this river, 7 acres in all
Town/village Of Harrison Land — city land, 0.15 mi of this river, 28 acres in all, access unrecorded
Public Park — city land, 0.15 mi of this river, 2 acres in all
Silver Lake Preserve — county land, 0.11 mi of this river, 12 acres in all
Liberty Park — city land, 0.11 mi of this river, 1 acre in all
Bark Dog Park — city land, 0.1 mi of this river
Hutchinson River Pkwy Lands — another state agency, 0.05 mi of this river, 7 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. "Restricted access" and "access unrecorded" are PAD-US's own words for the block, and
neither one means open — check before you park.