Rock River Basin Watersheds
What is a Watershed?
It’s the land that water flows across or under on its way to a stream, river or lake.
Rock River Basin Watersheds
Visit our interactive Stream Monitoring Map to access information about and to view watersheds.
Here is a list of all of the major watersheds in the Rock River Basin, along with resources to learn more about their waters and join the efforts of different organizations.
What is a HUC?
A Hydrologic Unit Code (HUC) is a way for the USGS to delineate watersheds across the country. They begin on large levels and move down to specifics. The Rock River Basin comprises two subbasins (HUC 8) and several more watersheds (HUC 10) and subwatersheds (HUC12).
HUC 8: subbasin > HUC 10: watershed > HUC 12: subwatershed
Resource for all: https://www.swtu.org/
Upper Rock River (07090001)
Resources:
WI DNR Upper Rock River Basin
WI DNR Rock River Recovery Project Portal
Counties: Dodge, Fond du Lac, Washington
Resources:
DNR Watershed Information
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
No Name Creek (070900010101)
Kohlsville River (070900010102)
Lomira Creek (070900010103)
Kimmel Creek (070900010104)
Limestone Creek – East Branch Rock River (070900010105)
Town of Theresa – East Branch Rock River (070900010106)
East Branch Rock River (070900010107)
Counties: Dodge, Fond du Lac, Green Lake
Resources:
DNR Watershed Information
Dodge County Healthy Soil Healthy Water
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Headwaters South Branch Rock River (070900010201)
South Branch Rock River (070900010202)
Headwaters West Branch Rock River (070900010203)
Plum Creek (070900010204)
Mill Creek (070900010205)
West Branch Rock River – Frontal Horicon Marsh (070900010206)
Horicon Marsh (070900010207)
Counties: Dodge, Washington
Resources:
DNR Watershed Information
Dodge County Healthy Soil Healthy Water
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Butler Creek (070900010301)
Headwaters Rubicon River (070900010302)
Rubicon River (070900010303)
Counties: Dodge, Jefferson, Waukesha
Resources:
DNR Watershed Information
Lake Sinissippi Improvement District
Lake Sinissippi Association
Dodge County Healthy Soil Healthy Water
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Dead Creek (070900010401)
Wildcat Creek (070900010402)
Sinnissippi Lake – Rock River (070900010403)
Counties: Dodge, Jefferson, Washington, Waukesha
Resources:
DNR Watershed Information
Oconomowoc Watershed Protection Program
Dodge County Healthy Soil Healthy Water
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Little Oconomowoc River – Oconomowoc River (070900010501)
Okauchee Lake – Oconomowoc River (070900010502)
Lac La Belle – Oconomowoc River (070900010503)
Oconomowoc River (070900010504)
Counties: Dodge, Jefferson, Washington, Waukesha
Resources:
DNR Watershed Information
Ashippun Lakes District
Dodge County Healthy Soil Healthy Water
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Baker Creek (070900010601)
Druid Lake – Ashippun River (070900010602)
Ashippun River (070900010603)
Mud Run – Rock River (070900010604)
Town of Ixonia (070900010605)
Norwegian Cemetary – Rock River (070900010606)
Silver Creek (070900010607)
Town of Watertown – Rock River (070900010608)
Counties: Columbia, Dane, Dodge
Resources:
DNR Watershed Information
Dodge County Healthy Soil Healthy Water
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Headwaters Crawfish River (070900010701)
Headwaters North Branch Crawfish River (070900010702)
North Branch Crawfish River (070900010703)
Robbins Creek – Crawfish River (070900010704)
Counties: Columbia, Dane, Dodge, Jefferson
Resources:
DNR Watershed Information
Maunesha River Alliance
Capitol Water Trails
Dodge County Healthy Soil Healthy Water
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Headwaters Maunesha River (070900010801)
Deansville Marsh – Maunesha River (070900010802)
Stony Brook (070900010803)
Maunesha River (070900010804)
Counties: Columbia, Dodge, Fond du Lac, Green Lake
Resources:
DNR Watershed Information
DNR Watershed Information
Beaver Dam Lake Improvement Association
Beaver Creek Targeted Watershed Assessment: A Report to Restore Wisconsin Watersheds, 2020
Dodge County Healthy Soil Healthy Water
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Alto Creek (070900010901)
Fox Creek (070900010902)
Beaver Creek (070900010903)
Beaver Dam Lake (070900010904)
Calamus Creek (070900010905)
Shaw Brook (070900010906)
Pratt Creek (070900010907)
Village of Reeseville – Beaver Dam River (070900010908)
Beaver Dam River (070900010909)
Counties: Columbia, Dane, Dodge, Jefferson
Resources:
DNR Watershed Information
Dodge County Healthy Soil Healthy Water
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Nolan Creek – Crawfish River (070900011001)
Mud Creek – Crawfish River (070900011002)
Rock Creek (070900011003)
Chub Lake – Crawfish River (070900011004)
Crawfish River (070900011005)
Counties: Dodge, Jefferson
Resources:
DNR Watershed Information
DNR Watershed Information
Johnson Creek Watershed Alliance
Dodge County Healthy Soil Healthy Water
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Headwaters Johnson Creek (070900011101)
Johnson Creek (070900011102)
Hahns Lake – Rock River (070900011103)
Deer Creek (070900011104)
City of Jefferson – Rock River (070900011105)
Middle Rock (07090002)
Resources:
WI DNR Lower Rock River Basin
Counties: Jefferson, Walworth, Waukesha
Resources:
DNR Watershed Information
HUC 12:
Mud Creek – Scuppernong River (070900020101)
Spring Creek – Scuppernong River (070900020102)
Counties: Jefferson, Rock, Walworth
Resources:
DNR Watershed Information
Rock County Land and Water Conservation Department: Land and Water Resource Management Plan 2020-2030
HUC 12:
Spring Brook (070900020201)
Whitewater Lake – Whitewater Creek (070900020202)
Whitewater Creek (070900020203)
Counties: Jefferson, Washington, Waukesha
Resources:
DNR Watershed Information
HUC 12:
Headwaters Bark River (070900020301)
Scuppernong Creen (070900020302)
Bowron Lake – Bark River (070900020303)
Duck Creek (070900020304)
Rome Pond – Bark River (070900020305)
Bark River (070900020306)
Counties: Dane, Jefferson, Rock, Walworth
Resources:
DNR Watershed Information
Capitol Water Trails
Friends of Cam-Rock Park
Rock County Land and Water Conservation Department: Land and Water Resource Management Plan 2020-2030
HUC 12:
Headwaters Koshkonong Creek (070900020401)
Mud Creek (070900020402)
Mud Lake – Koshkonong Creek (070900020403)
Lake Ripley – Koshkonong Creek (070900020404)
Koshkonong Creek (070900020405)
Counties: Columbia, Dane
Resources:
DNR Watershed Information
Clean Lakes Alliance
Friends of Cherokee Marsh
Friends of the Yahara River Headwaters
Aldo Leopold Chapter of Trout Unlimited
HUC 12:
Goose Lake – Yahara River (070900020501)
OneHundred Mile Grove Cemetery (070900020502)
Token Creek (070900020503)
Cherokee Lake – Yahara River (070900020504)
Counties: Dane, Green, Rock
Resources:
DNR Watershed Information
Friends of Badfish Creek Watershed
Friends of Allen Creek
Rock County Land and Water Conservation Department: Land and Water Resource Management Plan 2020-2030
HUC 12:
Oregon Branch (070900020801)
Rutland Branch – Badfish Creek (070900020802)
Badfish Creek (070900020803)
Counties: Dane, Rock
Resources:
DNR Watershed Information
Clean Lakes Alliance
Rock County Land and Water Conservation Department: Land and Water Resource Management Plan 2020-2030
HUC 12:
Door Creek (070900020901)
Lake Kegonsa – Yahara River (070900020902)
City of Stoughton – Yahara River (070900020903)
Town of Dunkirk – Yahara River (070900020904)
Yahara River (070900020905)
Counties: Dane, Jefferson
Resources:
DNR Watershed Information
Capitol Water Trails
HUC 12:
Fort Atkinson – Rock River (070900021001)
Otter Creek (070900021002)
Lake Koshkonong – Rock River (070900021003)
City of Milton (070900021004)
Saunders Creek (070900021005)
Town of Newville – Rock River (070900021006)
Counties: Rock
Resources:
DNR Watershed Information
HUC 12:
Stevens Creek – Bass Creek (070900021201)
Bass Creek (070900021202)
Counties: Rock, Walworth
Resources:
DNR Watershed Information
Friends of Turtle Creek
Rock County Land and Water Conservation Department: Land and Water Resource Management Plan 2020-2030
HUC 12:
Jackson Creek (070900021401)
Delavan Lake (070900021402)
Headwaters Turtle Creek (070900021403)
City of Darien (070900021404)
Little Turtle Creek (070900021405)
Trout Lake – Turtle Creek (070900021406)
Town of Avalon – Turtle Creek (070900021407)
Spring Brook – Turtle Creek (070900021408)