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Lake Name:

a lake.
St. Croix Flowage

St. Croix Flowage
Photo by Alex Smith

Contact information
For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
Division of Water
Bureau of Water Quality
DNR Contacts for St Croix Flowage

Gordon/St Croix Flowage Association [exit DNR]

Upper St Croix Lake Association [exit DNR]

Find A Lake > Douglas County > St Croix Flowage

St Croix Flowage
Douglas County, 2247 Acres

Facts & Figures
Name St Croix Flowage
Waterbody ID (WBIC) 2740300
Area 2247 ACRES
Maximum Depth 28 feet
Mean Depth 7 FEET
Bottom 48% sand, 0% gravel, 30% rock, 22% muck
Waterbody Type flowage
Hydrologic Lake Type DRAINAGE
County Douglas
Region NO
Latitude, Longitude 46.25608920, -91.87125450
Contour (Bathymetric) Map Contour Map
Interactive Map Interactive Map
Lake Management
Lake Organizations Gordon/St Croix Flowage Association [exit DNR]
Upper St Croix Lake Association [exit DNR]
Boat Landings 2
Fish Panfish, Largemouth Bass and Northern Pike
Lake Health
Invasive Species *
Aquatic forget-me-not (Myosotis scorpioides)*, Banded Mystery Snail, Chinese Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Narrow-leaf cattail (Typha angustifolia), Purple Loosestrife
(* = not verified)
Trophic Status Mesotrophic

* About Invasive Species: Disclaimer: Aquatic invasive species (AIS) records are assigned statuses of "verified", "observed", or "no longer observed" based on AIS Status Guidance. In general, "verified" populations are established and have been verified by a taxonomic expert. Populations with the "observed" status have not been verified by a taxonomic expert or do not have established populations. Populations with the "no longer observed" status include populations where a reproducing population did not establish. Our inventories are not necessarily exhaustive so it is important to report occurrences. To report new discoveries visit: See the Aquatic Invasive Species Guidance for information on how statuses are assigned. Personally identifiable information on data collection forms may be provided to requesters to the extent required by Wisconsin's Open Records Law [ss. 19.31-19.39, Wis. Stats.].

** About Boating Ordinances: Before boating on an unfamiliar Wisconsin waterways check for a sign at the public boat landing to determine if there are local regulations (more restrictive than state law) which may apply on that waterbody. Also be sure to review the document Wisconsin Boating Regulations at to learn about statewide regulations. There may be a delay between the time an ordinance is passed and the time it gets into our database. Therefore, the only way to know for sure if a water body has an ordinance in effect is to look for a sign posted at a public boat landing.