Reservoir · Mercer, Ohio
Grand Lake
At a glance
- Area
- 5,198 ha (12,845 acres)
Who lives here
- Channel catfish Ictalurus punctatusStocked · 2017 · Fish stocking: Ohio Department of Natural Resources, Division of Wildlife (Ohio Fish Stocking Records, DataOhio)
- Yellow perch Perca flavescensStocked · 2026 · Fish stocking: Ohio Department of Natural Resources, Division of Wildlife (Ohio Fish Stocking Records, DataOhio)
Not listed doesn't mean no fish.
Stocking
| Year | Species | Stage | Number |
|---|---|---|---|
| 2026 | Triploid Saugeye | Yearling | 249 |
| 2026 | Yellow Perch | Fingerlings | 259,308 |
| 2025 | Triploid Saugeye | Adv. Fingerlings | 51 |
| 2025 | Triploid Saugeye | Adv. Fingerlings | 409 |
| 2025 | Triploid Saugeye | Fingerlings | 214,403 |
| 2025 | Triploid Saugeye | Fry | 449,595 |
| 2025 | Yellow Perch | Fingerlings | 75,199 |
| 2025 | Yellow Perch | Fingerlings | 168,664 |
| 2025 | Yellow Perch | Fingerlings | 153,971 |
| 2024 | Yellow Perch | Fingerlings | 40,362 |
| 2024 | Yellow Perch | Fingerlings | 45,839 |
| 2024 | Yellow Perch | Fingerlings | 116,346 |
| 2023 | Yellow Perch | Fingerlings | 281,615 |
| 2023 | Yellow Perch | Fingerlings | 41,070 |
| 2022 | Yellow Perch | Adv. Fingerlings | 2,591 |
| 2022 | Yellow Perch | Adv. Fingerlings | 805 |
| 2020 | Yellow Perch | Fingerlings | 456,479 |
| 2020 | Yellow Perch | Fingerlings | 100,382 |
| 2020 | Yellow Perch | Fry | 1,897,500 |
| 2019 | Yellow Perch | Fingerlings | 35,822 |
As the agency publishes it. Newest first: 20 of 44.
Getting on the water
- Village of Montezuma Ramp FacilityBoat launch · Ohio Department of Natural Resources
- Grand Lake St. Marys State Park - Fries Channel RampBoat launch · Ohio Department of Natural Resources
- Grand Lake St. Marys State Park - West Bank RampBoat launch · Ohio Department of Natural Resources
- Grand Lake St. Marys State Park - Marina RampBoat launch · Ohio Department of Natural Resources
- Grand Lake St. Marys State Park - Boat Club RampBoat launch · Ohio Department of Natural Resources
- Grand Lake St. Marys State Park - Windy PointBoat launch · Ohio Department of Natural Resources
- Grand Lake St. Marys State Park - Mercelina ParkBoat launch · Ohio Department of Natural Resources
- Grand Lake St. Marys State Park - Its It RampBoat launch · Ohio Department of Natural Resources
- Grand Lake St. Marys State Park - Campground RampBoat launch · Ohio Department of Natural Resources
Listed by public agencies. A listed site doesn't make the water or its shore open to fishing: when in doubt, it's unknown. Check signs and local rules.
The rules
Summary, not the law. Check the official regulations before you fish.
HuntGrid has no rules for this water yet.
Official regulations: Ohio DNR Division of Wildlife
What's biting
Not enough anglers have shared catches here lately. A species shows for a week once at least 5 anglers share catches of it.
From anglers who chose to share their catches in HuntGrid Fishing, each counted once, counts rounded to the nearest 5, published 3 days after the week ends and never changed. Never a spot, time or name.
About this page
Sources and licences:
- U.S. Geological Survey, National Hydrography Dataset Plus High Resolution (NHDPlus HR); U.S. Census Bureau, TIGER/Line® Shapefiles 2025: counties and states · Public domain (U.S. Government work, 17 U.S.C. §105)
- Fish stocking: Ohio Department of Natural Resources, Division of Wildlife (Ohio Fish Stocking Records, DataOhio) · No licence stated (US government data; owner approved 2026-10-19): DataOhio's Ohio Fish Stocking Records (dataset d9d136f1-c96c-4dce-855a-045e95f030a5, ODNR_fish_stocking.csv, read 2026-10-19) and the portal's policies state no licence or restriction. Credit the agency; remove the layer if the agency asks.
- Ohio Department of Natural Resources · No licence grant; ODNR item: liability statement only, ohio.gov policies unread (owner approved 2026-10-19)
The outline is drawn from the official water data credited above, without a basemap. These pages show no angler's catches, spots or tracks.