Green River State Wildlife Area
Managed by Illinois Department of Natural Resources
863 acres1.5 mi of trail
Dog rules not recorded
Directionsto the parking lotWebsite ↗
–Not graded
Outdoors in Hamilton Township
Few parks or trails are on the map in Hamilton Township
The biggest trail networks: Green River State Wildlife Area (1.5 mi). 4% of Hamilton Township’s land is conserved, about 872 acres. 864 acres are parks and preserves, 6,801 per 1,000 residents.
Conserved land
4%
872 acres · of 35.7 sq mi of land
Trails
1.7 mi
0.0 per sq mi of land
Park land
864 ac
6,801 acres per 1,000 residents
Near a park
1%
of residents within ½ mile
The map
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Easements protect land from building but are usually private.© OpenStreetMap contributors · USGS PAD-US
Places to walk
Pick a walk
The longest trail network is Green River State Wildlife Area, with 1.5 miles. Directions go to the nearest trailhead or public parking.
Who protects it
872 conserved acres
4% of Hamilton Township’s land. Who manages Hamilton Township’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
State natural resources872 ac
State conservation13 ac
State Conservation Area · 872 acConservation Easement · 13 ac
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Green River State Wildlife Area State Conservation Area | State natural resources | 859 | Open |
| Foley Sand Prairie State Natural Area State Conservation Area | State natural resources | 13 | Open |
When to get out
The best walking months in Hamilton Township: April and September
NOAA’s 1991–2020 normals for the town and the daylight at its latitude. Outlined months have long days, highs of 59 to 86 °F and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.5 | 10.5 | 11.8 | 13.3 | 14.5 | 15.2 | 14.9 | 13.8 | 12.4 | 11.0 | 9.8 | 9.2 |
| High (°F) | 30 | 35 | 48 | 61 | 73 | 81 | 84 | 82 | 77 | 64 | 48 | 35 |
| Rain (in) | 1.7 | 1.8 | 2.4 | 3.7 | 4.7 | 5.1 | 4.0 | 4.0 | 3.5 | 2.9 | 2.4 | 2.1 |
January is the driest month (1.7 in) and July the warmest (highs of 84 °F). 5.1 inches fall in June, the wettest month. The climate in Hamilton Township →
Next door
Hamilton Township and its neighbors
Tap a town to see its outdoors.
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Hamilton Township | — not graded: under 1,000 residents or part of its town | ||||
| Hahnaman Township | — not graded: under 1,000 residents or part of its town | ||||
| East Grove Township | — not graded: under 1,000 residents or part of its town | ||||
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Hamilton Township
Where can I hike in Hamilton Township?
The longest trail networks: Green River State Wildlife Area, 1.5 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
Are dogs allowed on Hamilton Township’s trails?
Green River State Wildlife Area doesn’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Hamilton Township?
4,949 acres of parks and open public land lie inside Hamilton Township or within 10 miles of it (PAD-US), 864 of them inside the town line.
Trail talk
Conditions, parking and favorite walks from Hamilton Township neighbors.
Share a tip
Sources
Where this page comes from
Conserved and public land: USGS Protected Areas Database of the United States (PAD-US), service updated July 2026. Parks, trails, playgrounds, beaches and other places: OpenStreetMap (© OpenStreetMap contributors, ODbL), map data as of 2026-10-28. Land and water area: Census 2025 Gazetteer. Residents near a park: 2020 Census blocks. National Register: National Park Service. How TownRatings grades the outdoors →