Mad River (Ohio)
The Mad River flowing under Harshman Road in Riverside, Ohio
|Origin||~ 2 mi (3.2 km) northeast of Bellefontaine|
|Mouth||Great Miami River at Dayton|
|Length||66 miles (106 km)|
|Source elevation||~ 1,450 ft (442 m) |
|Mouth elevation||~ 750 ft (229 m) |
|Basin area||657 mi² (1,702 km²) |
The Mad River (Shawnee: Hathennithiipi ) is a stream located in the west central part of the U.S. state of Ohio. It flows 66 miles (106 km) from Logan County to downtown Dayton, where it meets the Great Miami River. The stream flows southwest from its source near Campbell Hill through West Liberty, along U.S. Route 68 west of Urbana, past Springfield (the point of confluence with Buck Creek), then along Ohio State Route 4 into Dayton. The stream's confluence with the Great Miami River is in Deeds Park.
Historically, the stream has also been known by the names Mad Creek and Tiber River, respectively, as well as by the Croatian name Fiume Mad (lit. "Mad River").
The first road between Cincinnati and Dayton that opened up the "Mad River Country" to European settlement was the Mad River Road, cut in 1797. Today, a ski resort named Mad River Mountain is located near the stream's source.
Mad River is the largest coldwater fishery in Ohio. The Ohio Department of Natural Resources's Division of Wildlife periodically stocked Mad River with rainbow trout from 1931 until 1984, when the organization began stocking the stream with brown trout instead. The trout population suffers low reproduction rates due to sedimentation from channelization, extensive agricultural runoff, and diminishing habitat.
 See also
- U.S. Geological Survey. Rushsylvania quadrangle, Ohio. 1:24,000. 7.5 Minute Series. Washington D.C.: USGS, 1961.
- U.S. Geological Survey. Dayton North quadrangle, Ohio. 1:24,000. 7.5 Minute Series. Washington D.C.: USGS, 1996.
- "Map of Ohio watersheds".
- "Shawnees Webpage". Shawnee's Reservation. 1997. Retrieved 2013-04-26.
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed May 19, 2011
- U.S. Geological Survey Geographic Names Information System: Mad River