Oswego County steep-slope & wetlands.
Oswego County climbs from the flat Lake Ontario shore onto the wetland-rich western Tug Hill. Between Happy Valley, Three Mile Bay, and the Salmon River corridor, it carries some of the densest state wetland mapping in New York, while the Tug Hill scarp adds the county's slope.
PARCEL DATA ✓Oswego County publishes tax-parcel boundaries, so you can zoom into the map, click any parcel — or several — and analyze it instantly. Searching by tax ID (SBL) or address works too.
WHAT YOU GET FOR ANY OSWEGO COUNTY PARCEL
Steep-slope share
Percent of the parcel over any slope threshold you pick, from USGS 3DEP 1 m LiDAR (Horn 1981) — re-thresholdable live.
Wetland acreage
DEC-regulated, Army Corps / NWI, and informational freshwater wetlands measured inside the boundary.
PDF & CAD export
A clean report, or a georeferenced DXF/DWG with slope contours and wetlands on labeled layers.
NEARBY IN CENTRAL NEW YORK & MOHAWK VALLEY
Sources: USGS 3DEP elevation, NYS Tax Parcels, NYS DEC Environmental Resource Mapper. Results are planning-level estimates from public GIS data — not a survey, jurisdictional determination, or wetland delineation.