Green River State Wildlife Area
Green River State Wildlife Area is a nature reserve in Illinois, at a recorded elevation of 207 m. Castle Rock stands 228 m to the north-northeast, 24 miles off. The nearest named place is Dickenson Site, a nature reserve 3.0 miles away. Lincoln Highway passes 13 miles off. 4 named summits stand within 25 miles.
What the record says
- Elevation
- 207 m
What to expect
- Operated by
- Illinois Department of Natural Resources
How to reach it
- 13.0 mi off the Lincoln Highway, National
- 17.0 mi off the Illinois River Road, National
- 66.8 mi off the Historic Route 66, National
Named places within 25 miles
- Roadside Park: 3.1 mi
- Foley Sand Prairie Nature Preserve: 6.2 mi
- Depot Street Park: 7.1 mi
- Centennial Park: 7.5 mi
- Oppold Marina: 11.7 mi
- Dickenson Site: 3.0 mi
- Ross Wildlife Area: 7.3 mi
- Blue Raider Park: 7.3 mi
- Sandy Hill Slough: 9.7 mi
- Spring Slough: 14.2 mi
- Sauk Rock: 13.0 mi
- 9-11 Monument: 13.1 mi
- Liberty Bell Monument: 13.3 mi
- President Ronald Reagan: 13.6 mi
- Dixon Memorial Arch: 14.0 mi
- Amboy Depot Museum: 10.5 mi
- Ronald Reagan Boyhood Home: 13.6 mi
- Engine Number 73: 13.6 mi
- Ronald Reagan Boyhood Home Visitor Center: 13.6 mi
- Sterling-Rock Falls Historical Society Museum: 13.7 mi
- Cherry Slag Pile: 20.9 mi
- Castle Rock: 23.7 mi
- Owls Head: 23.9 mi
- Thunderbolt Hill: 24.7 mi
- President Ronald Reagan as a boy: 14.3 mi
- Eagle: 14.5 mi
- Lincoln Highway Interpretive Mural: 17.6 mi
- F-105D Thunderchief: 14.4 mi
- Deck: 24.5 mi
- Roadside Park: 22.6 mi
- Valley View Picnic Area: 24.9 mi
- Commissioners Garden: 12.6 mi
- Bourbonais: 21.5 mi
- Cedar Bluff: 22.7 mi
Summits around it
The highest named summits within 25 miles of Green River State Wildlife Area. Elevation from each summit’s own record; bearing measured between the two coordinates.
| Summit | Bearing | Elevation | Distance |
|---|---|---|---|
| Castle Rock | NNE 17° | 228 m | 23.7 mi |
| Thunderbolt Hill | W 274° | 194 m | 24.7 mi |
| Owls Head | S 176° | 181 m | 23.9 mi |
When to go
Light through the year
| Date | Sunrise | Golden hour | Sunset |
|---|---|---|---|
| March equinox | 07:02 | 18:34 | 19:10 |
| June solstice | 05:25 | 19:54 | 20:37 |
| September equinox | 06:46 | 18:20 | 18:57 |
| December solstice | 07:22 | 15:47 | 16:31 |
Local time (America/Chicago).
Climate normals
Months averaging 50–80 °F: May–Oct.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °F | 21 | 25 | 38 | 50 | 61 | 71 | 73 | 71 | 64 | 52 | 39 | 27 |
| Precip in | 1.5 | 1.7 | 2.2 | 3.4 | 4.6 | 4.9 | 3.9 | 3.8 | 3.4 | 3.0 | 2.3 | 2.0 |
1991–2020 U.S. Climate Normals, NOAA NCEI — Walnut, 7 mi away.
- fragrant sumac7 obs
- Cutleaf Grapefern7 obs
- rough blazing star6 obs
- wild sweetwilliam6 obs
- racemed milkwort5 obs
- bracted plantain4 obs
- flowering spurge4 obs
- smooth sumac3 obs
Research-grade iNaturalist community observations within 3 km — what people have recorded, not a species inventory.
Where this comes from
Location and category confirmed against OpenStreetMap.
OpenStreetMapWikipediaWikidataOfficial siteOpenStreetMap element way/633157120
Day trips start here
- Cherry · 21 mi
Take the scenic way to Green River State Wildlife Area.
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