| Route 185 | ||||
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| Maintained by MoDOT | ||||
| Length: | 65 mi (105 km) | |||
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Route 185 is a highway in eastern Missouri. Its northern terminus is at Route 100 west of Washington; its southern terminus is at Route 8 in Potosi. A spur of Highway 185 goes into Meramec State Park and Meramec Conservation Area.