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Little Thunder

Cass County, Minnesota

Size:258.08 acres
Max Depth:72 ft
Public Access:✓ Yes
Species:3 documented

🌤️ Current Conditions

🏞️About Little Thunder

Little Thunder is a small, deep, clear lake located in Cass County, Minnesota. With a maximum depth of 72 feet, it supports a diverse fish population including coldwater species. Known for its walleye fishing, this lake offers opportunities for anglers of all skill levels.

Public access is available, making this lake accessible for boat fishing as well as shore angling. Check the DNR LakeFinder for specific access point locations and amenities.

Bait shops near Little Thunder

Licensed Minnesota bait and tackle shops closest to the lake — live minnows, leeches and crawlers, plus what's biting this month.

Frequently Asked Questions

Do I need a fishing license to fish in Minnesota?+

Yes — anyone 16 or older needs a valid Minnesota fishing license to fish any lake in the state. A resident annual license runs about $25, non-resident around $51, with short-term options (24-hour, 72-hour, 7-day) also available online or at local bait shops. Anglers under 16 and residents 90+ are exempt. Prices can change year to year — verify current fees at the DNR before buying.

What's the best time of day to fish?+

Early morning (dawn through a few hours after sunrise) and evening (a few hours before dusk through dark) are generally the most productive windows, when gamefish like walleye and bass feed most actively in low light. Midday can still produce, especially on cloudy or windy days or by fishing deeper structure.

What's the best time of year to fish in Minnesota?+

Minnesota fishing is essentially year-round. The open-water season runs from the general fishing opener in mid-May through fall, with spring (post-spawn) and fall (pre-winter feeding) often producing the most active bites. Ice fishing typically runs December through February or March once lakes freeze safely.

Can I fish from shore, or do I need a boat?+

Both work on most Minnesota lakes. Shore and pier fishing near public accesses is a great option, especially for panfish, though a boat opens up more structure and deeper water where species like walleye often hold — particularly on larger lakes.

What basic gear do I need to get started?+

A medium-action spinning rod and reel, 6–10 lb test line, a small tackle box with jigs, hooks, and a few live-bait rigs, plus a Minnesota fishing license covers most beginner trips. Live bait (nightcrawlers, leeches, minnows) is effective and easy to find at bait shops near most popular lakes.

How do I find current fishing regulations for a specific lake?+

Check the Minnesota DNR's LakeFinder tool (dnr.state.mn.us/lakefind) by searching the lake name or DOW number — it shows any lake-specific regulations, like special slot limits, alongside statewide rules. Regulations can change year to year, so verify before you keep fish even on a lake you've fished before.

How thick does ice need to be for safe ice fishing?+

The DNR recommends at least 4 inches of new, clear ice to support a person on foot, and 5–7 inches for a snowmobile or ATV — considerably more for any vehicle. Ice thickness varies across a single lake and can be a foot thick in one spot and dangerously thin a few feet away. The DNR doesn't measure or guarantee ice safety on any lake, so check thickness yourself as you go.

What should I do if I catch a fish I'm not sure I should keep?+

When in doubt, release it. Check the DNR's current size and possession limits for the species and lake before fishing, and be aware some lakes and species carry fish consumption advisories from the MN Department of Health for mercury or other contaminants — a separate concern from possession regulations, and worth checking too.

Do I need a fishing guide?+

Not required, but worth considering for a first trip to a large or unfamiliar lake — local guides know current structure, depth, and patterns that can take years to learn on your own, especially on big water like Lake of the Woods or Mille Lacs. On smaller, well-mapped lakes, most anglers do fine self-guided.

Where can I find current fishing reports and conditions?+

Check this site's fishing forecast and weather pages for current conditions, or the DNR's LakeFinder for lake-specific water clarity, temperature, and survey data. Local bait shops near a given lake are also a reliable source for what's actually biting that week.

🐟Fish Species

Based on DNR fish surveys, the following species have been documented in Little Thunder:

Walleye

Sander vitreus

COMMON

Good population of eating-size walleye

Avg. Size:15"
Category:gamefish

Minnesota's state fish, prized for excellent table fare and sporting qualities.

Walleye fishing on Little Thunder

Northern Pike

Esox lucius

COMMON

Healthy pike population

Avg. Size:23"
Category:gamefish

Aggressive predator fish found throughout Minnesota waters.

Northern Pike fishing on Little Thunder

Muskellunge

Esox masquinongy

UNCOMMON

Trophy muskie potential

Avg. Size:38"
Category:gamefish

The fish of 10,000 casts - Minnesota's largest predator fish.

Muskellunge fishing on Little Thunder

📋Fishing Regulations

Note: These are statewide regulations. Little Thunder may have special regulations. Always verify current rules at DNR Fishing Regulations.

SpeciesPossession LimitSize LimitSeason
Walleye6No minimum (special regulations on some waters)May 10 - Feb 23
Northern Pike324" minimum (some waters have slots)May 10 - Feb 23

📊Lake Details

DOW Number
11000900
Surface Area
258.08 acres
Maximum Depth
72 feet
Average Depth
29 feet
County
Cass
Coordinates
46.9650°N, 93.8666°W

💡Quick Tips

  • Check ice conditions before winter fishing - never trust visual appearance alone
  • Early morning and late evening are typically best for walleye
  • Always have a valid Minnesota fishing license before fishing
  • Clean, drain, and dry boats to prevent invasive species spread