US lakes & pondsUS lakes & pondsSurface area: The USGS National Hydrography Dataset outline (NHD Permanent ID 106571889).
The red circle marks Flagstaff Lake.
Towns and counties: U.S. Census Bureau boundaries overlaid on the USGS lake outline.
Official Maine IF&W pages. Rules and fees change; check before you go.
Numbers on the map match the list at rightbelow.
Shoreline: USGS National Hydrography Dataset (NHD Waterbody, Permanent ID 106571889), public domain. State outline: U.S. Census Bureau TIGERweb. Points: Maine Bureau of Parks and Lands public boat launches and OpenStreetMap boat ramps (ODbL). Dashed trails: © OpenStreetMap contributors (ODbL). Interactive map: Leaflet with © OpenStreetMap contributors. Not for navigation.
OpenStreetMap shows about 5.9 mi of public hiking and walking trail within about 100 m (330 ft) of the Flagstaff Lake shoreline, mostly along the east shore.
The dashed brown line on the lake map shows these trails. We include paths, footways and marked trails that OpenStreetMap doesn't mark as private, and leave out roads, sidewalks and snowmobile corridors. Mapped trails can still cross private land or close for the season, and not every trail is mapped, so follow posted signs.
Trails: © OpenStreetMap contributors, available under the Open Database License (ODbL). Map data as of Oct 9, 2026. Trail lengths count only the parts within about 100 m of the USGS NHD lake outline.
We found 30 campgrounds and RV parks within 15 miles of Flagstaff Lake, 23 of them within 5 miles. 15 are right on the shore. Distances are straight-line from the nearest point on the shoreline, so driving distance is longer.
Tent sites · Dogs allowed · Campfires allowed
Tent sites · Dogs allowed · Campfires allowed
Tent sites · Dogs allowed · Campfires allowed
Tent sites · Dogs allowed · Campfires allowed
Tent sites · Dogs allowed · Campfires allowed
Tent sites · Dogs allowed · Campfires allowed
All campgrounds & RV parks in Maine
Green tent icons on the lake map mark campgrounds near the shore, and the interactive map shows the closest 12. Amenities are listed only where a source records them; call or check the campground's website before you go, since seasons and rates change every year.
Campground data: OpenStreetMap contributors (ODbL). Pulled Oct 12, 2026.
Live from the National Weather Service API for the lake's coordinates (45.1922, -70.1910). The nearest station may be several miles away. NWS forecast for Flagstaff Lake. No live water-temperature sensor is shown because we haven't found a public one for this lake.
Based on solunar theory, an estimate. Major periods (about 2 hours) center on when the moon is directly overhead or underfoot; minor periods (about 1 hour) center on moonrise and moonset. The 0–100 activity score rises during those periods and gets a boost near sunrise and sunset and around the new and full moon. Weather, water temperature and pressure often matter more. Sun and moon times are calculated in your browser from the lake's coordinates with standard astronomy formulas, shown in ET (America/New_York), and accurate to within a few minutes.
★ = stocked recently (see Stocking). No machine-readable species survey is published for this water; the list shows stocked fish only.
1 stocking trip so far in 2026, 1,000 fish in total.
| Date | Species | Fish | Size |
|---|---|---|---|
| May 26, 2026 | Landlocked salmon | 1,000 | 6 in |
Maine IF&W 2026 year-to-date stocking report (PDF)
Matched to this water by name and town. Pulled Oct 10, 2026.
7 public access sites listed, 4 with a boat ramp or trailer launch.
| Site | Town | Owner | Type | Parking | Fee | Uses | Map |
|---|---|---|---|---|---|---|---|
| Boat ramp | Northwest Somerset | — | Boat ramp (OpenStreetMap) · Yes ramp | — | — | Boating | 45.2208, -70.1976 |
| Dead River Twp boat launch | Dead River Twp | BROOKFIELD RENEWABLE ENERGY GROUP | Trailer launch · Gravel ramp | 2 trailer | — | Boating | 45.1381, -70.1703 |
| Eustis boat launch | Eustis | DACF | Trailer launch · Hard ramp · dock | — | — | Boating | 45.1520, -70.4470 |
| T3 R4 Bkp Wkr boat launch | T3 R4 Bkp Wkr | DACF | Trailer launch · Gravel ramp | 2 trailer | — | Boating | 45.2201, -70.1927 |
| Bigelow Twp carry-in access | Bigelow Twp | DACF | Carry-in (hand launch) | 3 car | — | Boating | 45.1734, -70.4125 |
| Dead River Twp carry-in access | Dead River Twp | DACF | Carry-in (hand launch) | 2 car | — | Boating | 45.1689, -70.2362 |
| Flagstaff Twp carry-in access | Flagstaff Twp | DACF | Carry-in (hand launch) | 3 car | — | Boating | 45.1884, -70.4149 |
Maine Bureau of Parks and Lands public boat launches and OpenStreetMap boat ramps (ODbL)
Fees, hours and rules change; confirm with the site owner before you go.
Reported on or near Flagstaff Lake
USGS Nonindigenous Aquatic Species database
USGS records matched to this water by location (within about 150 m of the outline) or by the place name in the record. A record shows a sighting was reported; it doesn't prove the species is still there. As of Oct 10, 2026.
Straight-line distance between lake centers. All Maine lakes & ponds · All waters in Eustis