Shell Rock River
title: "Shell Rock River" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["rivers-of-iowa", "rivers-of-minnesota", "rivers-of-black-hawk-county,-iowa", "rivers-of-bremer-county,-iowa", "rivers-of-butler-county,-iowa", "rivers-of-cerro-gordo-county,-iowa", "rivers-of-floyd-county,-iowa", "rivers-of-freeborn-county,-minnesota", "rivers-of-worth-county,-iowa", "mississippi-river-watershed", "cedar-river-(iowa-river-tributary)"] topic_path: "general/rivers-of-iowa" source: "https://en.wikipedia.org/wiki/Shell_Rock_River" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::data[format=table title="Infobox river"]
| Field | Value |
|---|---|
| name | Shell Rock River |
| name_other | Shellrock River |
| image | Cherry Street Bridge over Shell Rock River.jpg |
| image_size | 250px |
| image_caption | Shell Rock River in Shell Rock, Iowa |
| pushpin_map | Iowa |
| pushpin_map_caption | Location of mouth |
| subdivision_type1 | Country |
| subdivision_name1 | United States |
| subdivision_type2 | States |
| subdivision_name2 | Minnesota, Iowa |
| subdivision_type3 | Counties (Minnesota) |
| subdivision_name3 | Freeborn |
| subdivision_type4 | Counties (Iowa) |
| subdivision_name4 | Worth, Cerro Gordo, Floyd, Butler, Bremer, Black Hawk |
| length | 113 mi |
| discharge1_location | Shell Rock, Iowa |
| discharge1_avg | 1,211 cu/ft. per sec. |
| source1 | Albert Lea Lake |
| source1_location | Freeborn County, Minnesota |
| source1_coordinates | |
| mouth | West Fork Cedar River |
| mouth_location | Black Hawk County, Iowa |
| mouth_coordinates | |
| mouth_elevation | 869 ft |
| tributaries_right | Winnebago River |
| :: |
| name = Shell Rock River | name_native = | name_native_lang = | name_other = Shellrock River | name_etymology = | image = Cherry Street Bridge over Shell Rock River.jpg | image_size = 250px | image_caption = Shell Rock River in Shell Rock, Iowa | map = | map_size = | map_caption = | pushpin_map = Iowa | pushpin_map_size = | pushpin_map_caption= Location of mouth | subdivision_type1 = Country | subdivision_name1 = United States | subdivision_type2 = States | subdivision_name2 = Minnesota, Iowa | subdivision_type3 = Counties (Minnesota) | subdivision_name3 = Freeborn | subdivision_type4 = Counties (Iowa) | subdivision_name4 = Worth, Cerro Gordo, Floyd, Butler, Bremer, Black Hawk | subdivision_type5 = | subdivision_name5 = | length = 113 mi | width_min = | width_avg = | width_max = | depth_min = | depth_avg = | depth_max = | discharge1_location= Shell Rock, Iowa | discharge1_min = | discharge1_avg = 1,211 cu/ft. per sec. | discharge1_max = | source1 = Albert Lea Lake | source1_location = Freeborn County, Minnesota | source1_coordinates= | source1_elevation = | mouth = West Fork Cedar River | mouth_location = Black Hawk County, Iowa | mouth_coordinates = | mouth_elevation = 869 ft | progression = | river_system = | basin_size = | tributaries_left = | tributaries_right = Winnebago River | custom_label = | custom_data = | extra =
The Shell Rock River is a 113 mi tributary of the West Fork Cedar River in southern Minnesota and northern Iowa in the United States. Via the Cedar and Iowa rivers, it is part of the Mississippi River watershed.
Name
This river was named for the fossil shells found in outcroppings along its banks. The United States Board on Geographic Names settled on "Shell Rock River" as the stream's name in 1931. According to the Geographic Names Information System, it has also been known by the spelling "Shellrock River".
Course
The Shell Rock River flows from Albert Lea Lake in Freeborn County, Minnesota, and soon enters Iowa, flowing generally south-southeastwardly through eastern Worth, northeastern Cerro Gordo, western Floyd, northeastern Butler, southwestern Bremer and northwestern Black Hawk counties, past the town of Glenville in Minnesota and the towns of Northwood, Plymouth, Rock Falls, Nora Springs, Rockford, Marble Rock, Greene, Clarksville and Shell Rock in Iowa. It joins the West Fork of the Cedar River in Black Hawk County, about 6 mi north-northwest of Cedar Falls. At Rockford, Iowa, it collects the Winnebago River from the west.
References
References
- "Shell Rock River".
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. [http://viewer.nationalmap.gov/viewer/ The National Map], accessed May 13, 2011
- Upham, Warren. (1920). "Minnesota Geographic Names: Their Origin and Historic Significance". Minnesota Historical Society.
- {{Gnis. 461563. Shell Rock River
- [[DeLorme]] (1994). ''Minnesota Atlas & Gazetteer''. Yarmouth, Maine: DeLorme. {{ISBN. 0-89933-222-6.
- [[DeLorme]] (1998). ''Iowa Atlas & Gazetteer''. Yarmouth, Maine: DeLorme. {{ISBN. 0-89933-214-5.
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