Updated 9 Oct 2026, 1:34 am EDT. Get alerts for Alpena County lakes
National Weather Service; National Interagency Fire Center; U.S. EPA CyAN satellite; Michigan DHHS; Michigan DNR. Weather, warnings, fires and satellite refresh when you open the page (checked at most hourly).
22 lakes · 16,231 acres · 5 with measured depth · 3 with a public launch · 3 stocked
Alpena County has 22 lakes of 10 acres or more, 16 of them named, covering 16,231 acres of water. The largest is Fletcher Pond at 6,819 acres; the deepest measured is Beaver Lake at 70 ft. Michigan DNR has surveyed the depth of 5 lakes here. Several names repeat: 2 lakes are called Devils Lake and 2 lakes are called Mud Lake.
Lake outlines: Michigan hydrography (lakes of 10 acres or more). Depths: Michigan DNR lake surveys, fetched 7 Oct 2026. County line: U.S. Census TIGER. Not for navigation.
11 lakes in Alpena County cover 100 acres or more. The 12 largest are listed here; the full register of 16 named lakes follows.
| Lake | Acres | Deepest | Clarity | Launches | Last stocked |
|---|---|---|---|---|---|
| Fletcher Pond | 6,819 | 8 ft | 6 ft | 1 | |
| Long Lake | 5,342 | 25 ft | 9 ft | 2 | 2025 |
| Lake Winyah | 865 | about 30 ft (est.) | 7 ft | 2018 | |
| Devils Lake, Alpena Township | 813 | 5 ft | 4 ft | ||
| Beaver Lake | 693 | 70 ft | 13 ft | 1 | 2016 |
| Ninth Street Pond | 366 | 23 ft | 6 ft | ||
| Grass Lake | 337 | about 15 ft (est.) | 1 ft | ||
| Middle Lake | 240 | about 25 ft (est.) | 1 ft | ||
| Mud Lake, Alpena Township | 187 | about 15 ft (est.) | 6 ft | ||
| Elbow Lake | 125 | about 15 ft (est.) | 1 ft | ||
| Devils Lake, Alpena Township | 104 | about 25 ft (est.) | 13 ft | ||
| Fourmile Pond | 93 | 13 ft |
| Lake | Acres | Deepest | Clarity | Launches | Last stocked |
|---|---|---|---|---|---|
| Fletcher Pond | 6,819 | 8 ft | 6 ft | 1 | |
| Long Lake | 5,342 | 25 ft | 9 ft | 2 | 2025 |
| Lake Winyah | 865 | about 30 ft (est.) | 7 ft | 2018 | |
| Devils Lake, Alpena Township | 813 | 5 ft | 4 ft | ||
| Beaver Lake | 693 | 70 ft | 13 ft | 1 | 2016 |
| Ninth Street Pond | 366 | 23 ft | 6 ft | ||
| Grass Lake | 337 | about 15 ft (est.) | 1 ft | ||
| Middle Lake | 240 | about 25 ft (est.) | 1 ft | ||
| Mud Lake, Alpena Township | 187 | about 15 ft (est.) | 6 ft | ||
| Elbow Lake | 125 | about 15 ft (est.) | 1 ft | ||
| Devils Lake, Alpena Township | 104 | about 25 ft (est.) | 13 ft | ||
| Fourmile Pond | 93 | 13 ft | |||
| Mindack Lake | 35 | ||||
| Muskrat Farm Lake | 23 | about 20 ft (est.) | 2 ft | ||
| Fitzgerald Lake | 20 | about 20 ft (est.) | 4 ft | ||
| Mud Lake, Alpena Township | 12 |
Acres: Michigan hydrography. Deepest: Michigan DNR survey; "est." marks an older Michigan EGLE estimate, rounded to 5 ft. Clarity: Michigan EGLE satellite averages 2018–23. Launches: Michigan DNR. Stocking: Michigan DNR Fisheries. Fetched 7–8 Oct 2026.
2 lakes in Alpena County are 25 ft deep or more by Michigan DNR survey. Beaver Lake is the deepest at 70 ft, then Long Lake (25 ft), Ninth Street Pond (23 ft) and Fletcher Pond (8 ft). The depth of the other 11 named lakes has not been surveyed; where an older state estimate exists, the register gives it as an estimate.
Michigan DNR lake survey deep points, fetched 7 Oct 2026.
Clarity is the depth at which a black-and-white Secchi disk disappears from view. Across 14 lakes with satellite readings, the middle value in Alpena County is 6 ft. The clearest is Beaver Lake at about 13 ft, then Devils Lake, Alpena Township (13 ft), Fourmile Pond (13 ft) and Long Lake (9 ft). The least clear is Elbow Lake at about 1 ft. Clarity is not a test for bacteria or algae toxins.
Michigan EGLE satellite-derived Secchi depth, averages 2018–23, fetched 7 Oct 2026.
Michigan DNR lists 4 public access sites on 3 lakes in Alpena County; 4 require a Recreation Passport. The other 13 named lakes have no public access site listed by Michigan DNR.
| Lake | Site | Facilities |
|---|---|---|
| Fletcher Pond | Fletcher Pond | 2 ramp lanes · 48 trailer spaces · 8 car spaces · vault toilet · Recreation Passport required |
| Long Lake | Long Lake | 1 ramp lane · 10 trailer spaces · vault toilet · Recreation Passport required |
| Long Lake | Long Lake County Park | 4 ramp lanes · 45 trailer spaces · 15 car spaces · vault toilet · accessible restroom · Recreation Passport required |
| Beaver Lake | Beaver Lake | 10 trailer spaces · 10 car spaces · vault toilet · accessible restroom · Recreation Passport required |
Michigan DNR boating access sites, fetched 8 Oct 2026.
Michigan DNR has stocked 3 lakes in Alpena County 63 times since 1979. Walleye went into 3 lakes: Beaver Lake, Lake Winyah and Long Lake. The most recent stocking was 3,200 walleye in Long Lake on 1 November 2025. Rivers and smaller waters stocked in the county: Beaver Creek, Beaver Lake Pike Marsh, Four Mile Impoundment, Lake Huron, Lower South Branch Thunder Bay River, Ninth Street (Alpena) Imp. (Lake Besser), Northern Lake Huron and Paxton Quarry and 3 more.
| Species | Lakes | Where |
|---|---|---|
| Walleye | 3 | Beaver Lake, Lake Winyah and Long Lake |
| Northern pike | 2 | Beaver Lake and Lake Winyah |
| Yellow perch | 1 | Long Lake |
| Bluegill | 1 | Long Lake |
| Tiger muskellunge | 1 | Beaver Lake |
2025: 1 stocking, 3,200 fish in 1 lake.
Michigan DNR Fisheries stocking records, fetched 8 Oct 2026. Each stocking is placed by its survey section, so lakes that share a name are kept apart. How we measure
22 lakes of 10 acres or more, 16 of them named, in Michigan's hydrography layer. Smaller ponds are not counted.
Fletcher Pond, at 6,819 acres.
Beaver Lake, 70 ft at its deepest point by Michigan DNR survey.
Beaver Lake, with an average Secchi depth of about 13 ft (satellite readings, 2018–23).
Michigan DNR lists public access sites on Fletcher Pond, Long Lake and Beaver Lake.
Beaver Lake, Lake Winyah and Long Lake, by Michigan DNR stocking records.