| Thompson River Thompson Fork Grand River | |
|---|---|
| Location | |
| Country | United States |
| State | Iowa, Missouri |
| Physical characteristics | |
| Source | Near Greenfield |
| • location | Adair County, Iowa |
| • coordinates | 41°21′24″N 94°25′52″W / 41.35667°N 94.43111°W[1] |
| • elevation | 1,360 ft (410 m) |
| Mouth | Grand River |
• location | Livingston County, Missouri |
• coordinates | 39°45′50″N 93°36′52″W / 39.76389°N 93.61444°W[1] |
• elevation | 679 ft (207 m) |
| Length | 188 mi (303 km) |
| Basin size | 1,850 sq mi (4,800 km2) |
| Discharge | |
| • location | Trenton, 25.2 miles (40.6 km) from the mouth[2] |
| • average | 1,059 cu ft/s (30.0 m3/s)[3] |
| • minimum | 1 cu ft/s (0.028 m3/s) |
| • maximum | 95,000 cu ft/s (2,700 m3/s) |
| Basin features | |
| Tributaries | |
| • left | Weldon River, Honey Creek |
| • right | Sugar Creek, Hickory Creek |
The Thompson River is the largest tributary of the Grand River in the central United States, flowing from southern Iowa into Missouri. In Iowa, it is known simply as the Grand River and passes near the city of Grand River.[4] The river is 188 miles (303 km) long,[5] and its drainage basin is roughly 1,850 square miles (4,800 km2), of which 1,111 square miles (2,880 km2) are in Missouri.[6]
It rises in the agricultural lands of Adair County, Iowa, a few miles northeast of Greenfield. The river initially flows east then bends south, passing Macksburg and Davis City and crossing Interstate 35. It then flows into Missouri, where much of its course is channelized. The Weldon River joins at the town of Trenton, the largest settlement along the Thompson River. Below Trenton, the Thompson meanders south for another 25 miles (40 km), joining the Grand River just north of Utica in Livingston County.[7]
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Missouri River Tips
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Gold panning the Thompson River placer gold claim.
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BIG BEND DAM. Missouri River Flood NEW 6-18-11 Record Water Release "Amazing"
Transcription
The Mighty Missouri River is one of Kansas’ three navigable rivers, and many enjoy fishing, swimming, and floating this public water. But it is a deep and powerful river, one that must always be respected. The navigation channel is always at least 9 feet deep, and depths of 35 feet or more can be found. When boating this big river, you need to know the rules of the road. Kirk Thompson, Public Lands Manager for Kansas Wildlife & Parks, provides a few tips when navigating the Missouri: “The Missouri River is a big river system. It’s a navigable stream, which means it’s open to the public below the high water mark of the river. And on this big river system, you still need to be very careful when you’re boating. We have snags in some of the shallow water, and all up and down the river, there are wing dikes that jut out from the banks which control the current and keep the current in the deepwater channel. And these wing dikes can sometimes be just under the water. And if you’re boating, you have to be very careful that you don’t run your motor over the top of that, it can take your lower unit out. Also, you have to be careful of the snags that catch on them, and they can also do damage to your boat. “Green is on the west bank, and red is on the east bank. It helps them navigate, so if you’re r at night and you see a green one, you know the shallow water is to the west, and if it’s red, you know that’s the east bank. “On the Missouri River, you can use either fishing license, Kansas or Missouri, on either bank. People from Missouri can come onto the Kansas bank and fish with a Missouri license, and people from Kansas can go to Missouri and fish on their bank with a Kansas license. “On the Missouri River you’ll catch about any species that’s in the state of Kansas, and there’s probably some species in the Missouri River that you won’t find anywhere else, except maybe the Kansas River up to Lawrence. “The biggest catfish that I’ve heard come out of here was probably just a little over a hundred pounds. It was a blue catfish, l;and it was just south of Atchison where it was caught.” Special, reciprocal length and creel limits apply for the Missouri River boundary waters between Kansas and Missouri. Check the 2010 Kansas Fishing Regulations Summary for details. For a big river fishing or boating experience, give the Missouri a try. Boat ramps can be found at Kaw point in Kansas City, Atchison, St. Joseph, and White Cloud. No matter where you float, always wear your life jacket. And please, help keep our rivers clean. I’m Mike Blair for Kansas Wildlife and Parks.
See also
References
- ^ a b "Thompson River". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. 1980-10-24. Retrieved 2011-03-29.
- ^ "USGS Gage #06899500 on the Thompson River at Trenton, MO" (PDF). National Water Information System. U.S. Geological Survey. Retrieved 2011-03-29.
- ^ "USGS Gage #06899500 on the Thompson River at Trenton, MO" (PDF). National Water Information System. U.S. Geological Survey. Retrieved 2011-03-29.
- ^ State Transportation Map (PDF) (Map). Iowa DOT. 2017. Retrieved 2018-04-28.
- ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed May 26, 2011
- ^ "Thompson River Basin". Missouri Watershed Information Network. Retrieved 2011-03-29.
- ^ USGS Topo Maps for United States (Map). Cartography by United States Geological Survey. ACME Mapper. Retrieved 2011-03-29.
This page was last edited on 9 July 2023, at 02:21