Dekorra to Prairie du Sac

  • Scroll down past the map for details about this section of the trail.
  • Click here for the full size version of the map below.
  • Click here for a PDF file of the details.
  • Click any dam symbol Portage Symbol on the map below for a aerial photographic detail of portage.
  • Click any campsite symbol Campsites on the map below for a campgrounds information.

Mile marker signs on maps correspond with actual signs placed on the river. Mile markers are typically located on the right side of the bridges and at portage take out sites.


No signs were placed in the field at these locations but they were placed on the map for reference.

Map 1

- General Description
o Miles 317 - 319 (Dekorra to I 90-94 bridge) St. Lawrence Bluff borders the east shore keeping the river fairly narrow until it passes under I 90-94 where shoreline development increases and the river widens as it approaches Lake Wisconsin
o Miles 319 - 328 (I 90-94 bridge to Merrimac) River broadens out into 9,500 acre Lake Wisconsin where waves from heavy recreational boat traffic and winds can create challenging conditions for canoeists
o Miles 328 - 335 (Merrimac to Prairie du Sac dam) Lake narrows at Merrimac the site of the car ferry crossing and continues southwest to the last dam on the Wisconsin River

- Portages (see portage maps by clicking on the dam symbol)
o Mile 335 Prairie du Sac dam - Take-out at some large concrete steps along a chain linked fence about 400' to the put-in immediately below the dam into a turbulent tailwater area where there can be dangerous standing waves depending on discharge (left)

- Landings suitable for take-out or put-in
o Mile 323 - Rest park boat landing (left)
" Happy Hollow boat landing (left)
" Tipperary Point public boat landing (left)
o Mile 324 Perry Camp Landing (left)
o Mile 327 Okee Bay boat landing (left)
o Mile 329 Lake Drive boat landing (left)
o Mile 331 Moon Valley boat landing (right)
o Mile 332 Sauk County public boat landing (right)

- Camping
o Mile 336 VFW - Veteran Memorial Park in Prairie du Sac with 25 camp sites

- Other amenities
o Mile 319 through Mile 335 - Many businesses on Lake Wisconsin
o Mile 328 - Memorial Park with picnic area with shelter, playground, restrooms, accessible fishing pier and drinking water available
" Businesses in the Town of Merrimac and Village of Merrimac (right)
o Mile 336 - Veteran Memorial Park with boat landing, campground, picnic area with shelters, playground, restrooms and drinking water available on the eastside of the clubhouse (right)

- Flow Information - For information on river flow near Portage on this website go to Flow Forecasts under Wisconsin River /content.cfm?PageID=84&Cat=0 and for information on river flow below Prairie du Sac go to https://www.alliantenergy.com/SaveEnergyAndMoney/RenewableEnergy/FlowRate/index.htm.




Mile 0335