Charlie Otto Spring
Forest County, Wisconsin
About Charlie Otto Spring
Charlie Otto Spring is a prized trout lake in the Forest County Northwoods — cold, clear, and ideal for fly fishing, a intimate 3-acre lake reaching 3 feet at its deepest. Access is limited, which keeps boat traffic low — a plus for solitude seekers. Anglers primarily target Trout.
Bottom composition: 3% sand, 2% gravel, 1% rock, 95% muck
Type: lake · Hydrology: SPRING
Lake Location
45.97430° N, 88.75960° W
WBIC 711200 · Wisconsin DNRFish Species
Full table →Fishing Tips
- ·Trout hold in the deepest, coolest water during summer. Early morning stillwater fishing or bottom rigs near spring seeps is productive.
Local's Guide
Fishing
Species-specific tips above. Wisconsin fishing license required for ages 16+. See current season regulations below.
View fishing regulations ↓Swimming
Charlie Otto Spring has limited visibility and a gravel and sand bottom, making it better suited for boating and fishing than swimming. The 3-acre lake offers a quieter, more intimate swimming experience.
Nearby Dining
Local dining recommendations for Charlie Otto Spring are coming soon. Know a great spot near Charlie Otto Spring? Share it at staynorthern.com/contact. Looking for restaurants near Forest County lakes? Visit staynorthern.com/eats for our full northwoods dining guide.
Insider Tips
Charlie Otto Spring is one of Forest County's lesser-known gems — the kind of place locals return to year after year. Early mornings before 9am offer the calmest water and best fishing before boat traffic picks up. If you're visiting for the first time, check the DNR boat landing locations before you arrive — some are well-marked, others take a local to find. Know something about Charlie Otto Spring that visitors should? Share a tip at staynorthern.com/contact — we add the best ones to this page.
Lake Conditions
Water Clarity
—
No data
Trophic Status
—
No data
Invasive Weeds
Not documented
Clean lake
Seasonal Notes
See below
Ice-out dates, peak fishing windows
Ice typically goes out in late April to early May on northern Wisconsin lakes. Walleye and bass fishing peaks from late May through June and again in September and October. Summer brings warm water temps ideal for swimming from late June through August. Fall color peaks in late September — some of the most dramatic foliage in the state. Snowmobile and ice fishing season runs December through March, with hard ice typically forming by late December.
Condition data sourced from Wisconsin DNR surveys. Real-time weed and clarity reports coming soon.
Frequently Asked Questions
What fish can you catch in Charlie Otto Spring?
Charlie Otto Spring is home to Trout. Wisconsin fishing regulations apply — check current seasons and size limits before heading out.
Can you boat on Charlie Otto Spring?
Charlie Otto Spring does not currently have a public boat landing listed in the Wisconsin DNR database. Shore fishing or kayak/canoe access may still be available — check local access points.
How big is Charlie Otto Spring?
Charlie Otto Spring has 3 acres in surface area, a maximum depth of 3 feet.
What is the bottom of Charlie Otto Spring like?
The lake bottom is composed of 3% sand, 2% gravel, 1% rock, 95% muck. Sandy and gravel bottoms typically support good swimming and healthy fish habitat.
Are there invasive species in Charlie Otto Spring?
No invasive species are currently documented in Charlie Otto Spring by the Wisconsin DNR. Always clean, drain, and dry your boat before leaving to help protect this lake.
Where is Charlie Otto Spring located?
Charlie Otto Spring is located in Forest County, Wisconsin. GPS coordinates: 45.9743° N, 88.7596° W.
Are there vacation rentals on Charlie Otto Spring?
Stay Northern is building the most complete rental directory for Forest County lakes. Check our Charlie Otto Spring vacation rentals listing — if none are available yet, check back soon or browse nearby Forest County lake rentals.
Fishing Regulations
Current season regulations for Charlie Otto Spring
| Species | Season | Min. Length | Daily Bag |
|---|---|---|---|
| Bullheads | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Catfish | Open All Year | No minimum length limit and the daily bag limit is 10. | — |
| Cisco And Whitefish | Open All Year | No minimum length limit and the daily bag limit is 10. | — |
| Lake Sturgeon | Closed | No fishing allowed. | — |
| Largemouth Bass | May 2, 2026 to June 19, 2026 | The minimum length limit is 14" and the daily bag limit is 5. | — |
| Largemouth Bass And Smallmouth Bass | June 20, 2026 to March 7, 2027 | The minimum length limit is 14" and the daily bag limit is 5. | — |
| Muskellunge And Hybrids | May 2, 2026 to December 31, 2026 on open water | The minimum length limit is 40" and the daily bag limit is 1. | — |
| Northern Pike | May 2, 2026 to March 7, 2027 | No minimum length limit and the daily bag limit is 5. | — |
| Paddlefish | Closed | No fishing allowed. | — |
| Panfish | Open All Year | No minimum length limit and the daily bag limit is 25. | — |
| Rock, Yellow, And White Bass | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Rough Fish | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Round Goby | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
| Ruffe | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
| Shovelnose Sturgeon | Closed | No fishing allowed. | — |
| Smallmouth Bass | May 2, 2026 to June 19, 2026 | Fish may not be harvested (catch and release only). | — |
| Trout | See specific regulations | https://dnr.wisconsin.gov/topic/fishing/trout/ . | — |
| Walleye, Sauger, And Hybrids | May 2, 2026 to March 7, 2027 | The minimum length is 15", but walleye, sauger, and hybrids from 20" to 24" may not be kept, and only 1 fish over 24" is allowed. The daily bag limit is 3. | — |
| White Perch | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
Regulations sourced from Wisconsin DNR fisheries data. Always verify current regulations before fishing.
Lake Details
- WBIC
- 711200
- County
- Forest County
- Surface Area
- 3 acres
- Max Depth
- 3 ft
- Bottom
- 3% sand, 2% gravel, 1% rock, 95% muck
- Lake Type
- lake
- Coordinates
- 45.9743, -88.7596
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Charlie Otto Spring? Let us know.
Lake data sourced from the Wisconsin DNR. Last updated 4/30/2026.