Fishing at Big Deep, Minnesota
536-acre lake · Cass County · 1 species stocked
Stretching across 536 acres in Cass County, Big Deep is a lake known to anglers throughout Minnesota for its consistent fishery for its target species. Whether you're casting from a kayak or running deeper structure from a boat, the data on this page will help you plan your next trip.
Recent Stocking Reports
The most recent 2 stocking events on record for Big Deep:
| Date | Species | Quantity | Avg size |
|---|---|---|---|
| Jan 1, 2022 | 🐟 Walleye | 2,080 | 0.0″ |
| Jan 1, 2019 | 🐟 Walleye | 2,500 | 0.0″ |
Species You Can Catch
Where to Catch Walleye in Minnesota
If you're targeting one of the species stocked in Big Deep, the state-level guide ranks the top lakes by stocking volume — a good supplement to this page when planning a trip:
Best Time to Fish Big Deep
For walleye, the best fishing on Big Deep is typically in spring and fall, when surface temperatures fall in the 55–70°F range. That window matches the active feeding period for the species and aligns with lake thermal turnover, putting fish in predictable depths and structure. Check the recent stocking dates above — fish are easiest to locate in the first two to four weeks after a planting.
Nearby Lakes
Other stocked waters within ~75 miles of Big Deep:
- Big Deep Lake — 0.0 mi (533 ac)
- Trillium Lake — 1.5 mi (154 ac)
- Trillium — 1.5 mi (155 ac)
- Long Lake Number Two — 2.1 mi (246 ac)
- Sand — 2.2 mi (149 ac)
- Widow Lake — 2.5 mi (201 ac)
- Widow — 2.5 mi (198 ac)
- Deep Portage Lake — 2.8 mi (132 ac)
Fishing Regulations
A valid Minnesota fishing license is required at Big Deep. Buy one online and check current regulations at the Minnesota DNR. Always confirm seasonal closures, size limits, and creel limits before fishing.
Frequently Asked Questions
What fish are stocked in Big Deep?
Big Deep has been stocked with Walleye.
When was Big Deep last stocked?
The most recent stocking on record was Jan 1, 2022, when 2,080 walleye were planted.
Do I need a fishing license for Big Deep?
Yes — a valid Minnesota fishing license is required. Purchase one online from the Minnesota DNR.