East Nishnabotna River
| East Nishnabotna River | |
|---|---|
| Location | |
| Country | United States |
| State | Iowa |
| County | Audubon, Carroll, Cass, Fremont, Montgomery, Page, and Pottawattamie |
| Physical characteristics | |
| Source | |
| • location | Ewoldt Township |
| • coordinates | 41°54′03″N 94°59′31″W / 41.9008189°N 94.9919343°W |
| • elevation | 1,510 ft (460 m) |
| Mouth | Nishnabotna River |
• location | Madison Township |
• coordinates | 40°39′08″N 95°37′24″W / 40.6522232°N 95.6233264°W |
• elevation | 909 ft (277 m)[4] |
| Length | 123.6 mi (198.9 km) |
| Width | |
| • average | 75 ft (23 m)[1] |
| Discharge | |
| • location | SW of Atlantic[2] |
| • average | 193 cu ft/s (5.5 m3/s) |
| • minimum | 23.8 cu ft/s (0.67 m3/s) |
| • maximum | 3,760 cu ft/s (106 m3/s) |
| Discharge | |
| • location | Red Oak[3] |
| • average | 337.5 cu ft/s (9.56 m3/s) |
| • minimum | 30 cu ft/s (0.85 m3/s) |
| • maximum | 13,700 cu ft/s (390 m3/s) |
| Basin features | |
| Progression | East Nishnabotna River → Nishnabotna River → Missouri River → Mississippi River → Atlantic Ocean |
The East Nishnabotna River is a stream in the U.S. state of Iowa.[4] It is a tributary of Nishnabotna River and is 123.6 miles.[5][6] and is considered a major water source by the Iowa DNR.[7]
Three notable towns are situated on the East Nishnabotna River: Atlantic, Red Oak, and Shenandoah. Shenandoah was said to have been named because of the resemblance of the East Nishnabotna river valley to the Shenandoah Valley in Virginia.[8]
Hydrology
The stream is monitored at two places by USGS, Red Oak[9][10] and Atlantic.[11] The river's average discharge is 506 cubic feet per second at Red Oak.[12] There was a stream gauge at Riverton from 2010 to 2016.[13]
Course
The East Nishnabotna rises in southwestern Carroll County and flows southerly to Hamlin in Audubon County and begins to travel beside US Highway 71. Five miles further south, the stream passes to the west of Exira, then turns southwest and passes Brayton and Lorah as it enters Cass County. It then continues past Atlantic, the largest town on its course, and is joined by Troublesome Creek and Turkey Creek thereabouts.
The stream parts from US 71 and continues southerly past Lewis and enters Pottawattamie County as it passes Griswold. The stream continues southerly and enters Montgomery County as it passes Elliott. Continuing another 10 miles south-southwest, it passes Red Oak, then 7 miles later, Coburg. As it enters Page County, it turns back more southwest and passes Essex, Shenandoah, and Riverton in Fremont County before joining with the West Nishnabotna River to begin the Nishnabotna River.[14][15]
Tributaries
Fremont County
- Mill Creek - 17 miles long[5]
- Ledgewood Creek
- Fisher Creek
Page County
- Fourmile Creek
- Rocky Creek
- Eightmile Branch
Montgomery County
- Ramp Creek
- Ashby Creek
- Mormon Branch
- Red Oak Creek
- Coe Creek
Pottawattamie County
- Clarks Branch
- Baughmans Creek
Cass County
- Lone Tree Branch
- Indian Creek - 38 miles long[5]
- Camp Creek
- Prairie Rose Creek
- Elkhorn Creek
- Little Indian Creek
- Wolf Creek
- Bonnie Creek
- Bull Run
- Spring Creek
- Turkey Creek - 32 miles long[5]
- Bear Branch
- Lone Tree Branch
- Jim Branch
- Eller Branch
- Buck Creek - 16 miles long[5]
- Troublesome Creek - 34 miles long[5]
- Crooked Creek
- Pleasant Creek
- Fourmile Creek
Audubon County
- Sifford Creek
- Davids Creek - 17 miles long[5]
- Honey Creek
- Bluegrass Creek
- Crabapple Creek
See also
References
- ^ History of Page County. Des Moines: Iowa Historical Co. 1880. p. 323.
- ^ "East Nishnabotna River at Red Oak, IA - USGS-06809500". USGS. U.S. Department of the Interior. Retrieved March 20, 2026.
- ^ "East Nishnabotna River at Red Oak, IA - USGS-06809500". USGS. U.S. Department of the Interior. Retrieved March 20, 2026.
- ^ a b U.S. Geological Survey Geographic Names Information System: East Nishnabotna River
- ^ a b c d e f g https://geography.brucemyers.com/river/11237
- ^ "What the recent fertilizer spill means for the East Nishnabotna River". weareiowa.com. April 11, 2024. Retrieved April 8, 2025.
- ^ "Major Water Sources—Rivers and Streams". Iowa Department on Natural Resources. Retrieved April 28, 2025.
- ^ Peterson, William J (1941). Iowa: The Rivers Of Her Valleys. The State Historical Society of Iowa. p. 284.
- ^ "One year after fertilizer spill, Red Oak neighbors take action to protect water". KMTV 3 News Now Omaha. April 7, 2025. Retrieved April 8, 2025.
- ^ "East Nishnabotna River at Red Oak, IA".
- ^ "East Nishnabotna River near Atlantic, IA".
- ^ "USGS Current Conditions for USGS 06809500 East Nishnabotna River at Red Oak, IA".
- ^ "East Nishnabotna River at Riverton, IA - USGS-06809900". USGS. U.S. Department of the Interior. Retrieved March 20, 2026.
- ^ "Understanding the true scope of the Nishnabotna fertilizer spill - Iowa Environmental Council". www.iaenvironment.org. Retrieved April 8, 2025.
- ^ Koons, Cami; September 25 (2024). "DNR investigates manure spill near Doon, updates investigation of 'blue liquid,' other spills • Iowa Capital Dispatch". Iowa Capital Dispatch. Retrieved April 8, 2025.
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