Thompson River (Missouri) facts for kids
Quick facts for kids Thompson River |
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|---|---|
| Other name(s) | Thompson Fork Grand River |
| Country | United States |
| State | Iowa, Missouri |
| Physical characteristics | |
| Main source | Near Greenfield Adair County, Iowa 1,360 ft (410 m) 41°21′24″N 94°25′52″W / 41.35667°N 94.43111°W |
| River mouth | Grand River Livingston County, Missouri 679 ft (207 m) 39°45′50″N 93°36′52″W / 39.76389°N 93.61444°W |
| Length | 188 mi (303 km) |
| Basin features | |
| Basin size | 1,850 sq mi (4,800 km2) |
| Tributaries |
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The Thompson River is a major river in the central United States. It flows from southern Iowa into Missouri. This river is the largest stream that feeds into the Grand River. In Iowa, people sometimes call it the Grand River. It flows near the city of Grand River.
The Thompson River is about 188 miles (303 km) long. Its drainage basin covers roughly 1,850 square miles (4,800 km2). This area is where all the rain and snowmelt drain into the river. About 1,111 square miles (2,880 km2) of this basin is located in Missouri.
Contents
Where Does the Thompson River Start?
The Thompson River begins in the farming areas of Adair County, Iowa. This is just a few miles northeast of Greenfield. At first, the river flows towards the east. Then, it turns and heads south.
Journey Through Iowa
As it flows south, the river passes by towns like Macksburg and Davis City. It also goes under Interstate 35. After this, the river crosses the border into Missouri.
Entering Missouri
Once in Missouri, a large part of the river's path has been changed by people. This process is called channelization. It means the river's path has been made straighter and deeper. This helps with things like flood control and farming.
Major Towns and Tributaries
The Weldon River joins the Thompson River near the town of Trenton. Trenton is the biggest town located along the Thompson River. Below Trenton, the Thompson River continues to flow south for another 25 miles (40 km). It has many bends and curves in this section.
Joining the Grand River
Finally, the Thompson River meets the Grand River. This meeting point is just north of Utica. It is located in Livingston County.
What Are Tributaries?
Tributaries are smaller rivers or streams that flow into a larger river. The Thompson River has several important tributaries. On its left side, it receives water from the Weldon River and Honey Creek. On its right side, it is joined by Sugar Creek and Hickory Creek. These smaller streams help feed the Thompson River.
