Here’s where you’ll find information about the lake such as laws governing its shores, rules for riparian owners, maps of the channel, boating regulations, etc. This is handy information for residents and visitors alike.
DNR Trego Lake Information https://dnr.wi.gov/lakes/lakepages/LakeDetail.aspx?wbic=2712000
2022-26_TregoLakeAPMP_DRAFTv.2-w-appendices copy
Trego Flowage 2019 DNR Fish Survey
Trego lake Plant/Survey Managment (April 2021 Board Meeting presentation)
Namekagon River Research
This is a site with some fascinating information on the Namekagon River, including its history. Here’s the link.
Trego Lake Information from Wisconsin Department of Natural Resources
Lake map from June 1966
Trego Lake Sedimentation Study

Law Enforcement Contacts
Emergency 9-1-1
- Washburn County Sheriff 715-468-4720
- Department of Natural Resources Conservation Law Enforcement 715-635-2101
- National Park Service 800-ParkTip

It is the law in Wisconsin that boats may not travel faster than “no wake” when within 100 feet of:
- the shoreline (any and all shorelines)
- a dock, raft, or pier
- a swimmer
- a buoyed restricted area
- patrol boat
What does “no wake” mean? It means that the boat must be traveling as slowly as possible while maintaining control.
There are many areas on Trego Lake which are slow “no wake” zones. These include channels where it is less than 200 feet across from shoreline to shoreline.
It is a violation of Wisconsin law to operate a boat while intoxicated, or in a negligent or careless manner.
There are criminal penalties for these violations – and more. See Wis.Stat. Chapter 30. The DNR provides a helpful booklet on boating safety and law.
Here is a link to the DNR Boating Pamphlet. Please review! https://dnr.wi.gov/files/PDF/pubs/LE/LE0301.pdf
To report violations to law enforcement see the contact information above.
It is your responsibility as a boater to know and follow the law.
Much of Trego Lake is not wider than 200 feet across so the slow-no-wake rule applies to quite a few areas. And there are lots of kayaks and canoes on this little lake, so be courteous.