Army Corps of Engineers · Wisconsin
Grant River
Army Corps of Engineers · Wisconsin, United States
- Sites
- 74
- Hookups
- 62 electric, 1 with water, 10 no hookups
- Season
- May 1 to October 24
- Max RV length
- 90 ft
- Group sites
- Yes
- Drinking water
- Yes
- Restrooms
- Yes
- Showers
- Yes
- Dump station
- Yes
- Pets
- Yes
- Elevation
- 614 ft
- Dark sky
- Bortle class 3
- Cell coverage
- AT&T weak · Verizon weak · T-Mobile none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Lake
- Mississippi River - Pools 11-22
- Nearest town
- Potosi
- Address
- Grant River Recreation Area, Potosi, WI, 53820
- Phone
- RANGER OFFICE - 563-582-0881 / CAMPGROUND ENTRANCE STATION - 608-763-2140
- Activities
- Birding, Camping, Day Use Area, Evening Programs, Fishing, Picnicking, Water Access
74 numbered sites are mapped one by one - open the site map to pick yours.
About
Overview
Spread along the banks of the Upper Mississippi River, the Grant River Campground, located in the "Catfish Capital of Wisconsin," is a modern campground that offers a plethora of outdoor and recreational activities.
Recreation
The famous fishing on the Mississippi River draws crowds of anglers each year. The most popular species is the channel catfish, earning the city of Potosi the nickname "Catfish Capital of Wisconsin." Other species include bluegill, walleye, crappie, northern pike and bass. Best to try your luck in the spring before the rice field grows up.
There is boat ramp access within the campground, but can be chalenging for larger vessels as water levels drop and aquatic vegetation grows up.
Facilities
Picnic shelter and a playgrounds create an ideal environment for a small party or family get-together. Both tent and RV sites are available, and amenities like showers, drinking water and flush toilets offer a comfortable camping experience.
Natural Features
Surrounding the large campsite is a lush river landscape with towering bluffs and beautiful sunsets, creating a nature experience for visitors without losing the comforts of modern camping.
Contact Info
For facility specific information, please call (563) 582-0881.
Nearby Attractions
Potosi Brewing Company Restauraunt & Museum (Potosi, WI - 2 miles)
Lock and Dam 11 (Dubuque, IA - 19 miles)
National Mississippi River Museum & Aquarium (Dubuque, IA - 20 miles)
Diamond Jo Casino & The Q Casino (Dubuque, IA - 20 miles)
Historic sites, Antiques, Fine Dining (Galena, IL - 28 miles)
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 27° | 10° | -15° | 48° | 11 of 11 |
| February | 33° | 14° | -14° | 63° | 11 of 11 |
| March | 46° | 30° | 3° | 75° | 11 of 11 |
| April | 58° | 40° | 26° | 79° | 5 of 11 |
| May | 70° | 53° | 36° | 88° | 0 of 11 |
| June | 81° | 63° | 50° | 94° | 0 of 11 |
| July | 84° | 68° | 60° | 93° | 0 of 11 |
| August | 81° | 66° | 58° | 89° | 0 of 11 |
| September | 79° | 61° | 47° | 89° | 0 of 11 |
| October | 61° | 45° | 30° | 78° | 2 of 10 |
| November | 44° | 32° | 7° | 70° | 6 of 10 |
| December | 36° | 24° | -9° | 68° | 10 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Mound View Park Campground · City, County & Regional Parks · 14 mi · 15 sites
- Swiss Valley Park · City, County & Regional Parks · 16 mi
- Nelson Dewey State Park · Wisconsin State Parks · 16 mi · 48 sites
- Frenchtown Park · City, County & Regional Parks · 24 mi · 3 sites
- Spruce Creek Park · City, County & Regional Parks · 28 mi
All public campgrounds in Wisconsin · Every state and province · Facts read from the operator 2026-02-25. Confirm fees, rules and current status with the operator before you go.