Tunnel Hill, Illinois
| Tunnel Hill | |
| Unincorporated community | |
 Tunnel Hill, high point and eponym of the Tunnel Hill State Trail
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| Country | United States |
|---|---|
| State | Illinois |
| County | Johnson |
| Coordinates | 37°31′25″N 88°50′19″W / 37.52361°N 88.83861°WCoordinates: 37°31′25″N 88°50′19″W / 37.52361°N 88.83861°W |
| Timezone | CST (UTC-6) |
| - summer (DST) | CDT (UTC-5) |
| Postal code | 62972 |
| Area code | 618 |
  Location of Tunnel Hill within Illinois
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Tunnel Hill is an unincorporated community in northwestern Johnson County, Illinois. It is best known for its namesake railroad tunnel that gives the name to the Tunnel Hill State Trail, a rails-to-trails project developed by the Illinois Department of Natural Resources.
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