Summit elevation: USGS 3DEP elevation at the mapped summit point.
Does Garrison Hill have skiing?
No lift-served ski area on this mountain. Nearest ski area: McIntyre Ski Area, about 32.0 miles (straight line).
Altitude at a glance
County
Strafford County
Town / township
Dover
Tower
Observation tower Garrison Hill Tower. Open to the public (OpenStreetMap access tag) (OpenStreetMap)
Summit
291 ft / 89 m
Topo map
Base map: USGS The National Map (public domain). Switch to OpenTopoMap with the layer button. Use for orientation only; carry a proper map and compass.
Summit weather
Loading the National Weather Service forecast for the summit…
Forecast: National Weather Service (api.weather.gov), for the 2.5 km forecast grid cell at the summit coordinates, which accounts for elevation. Mountain weather changes fast; check again before you go.
Who manages this mountain
Garrison Hill Park, managed by City of Dover.
Land unit from the USGS PAD-US database at the summit point; ranger district from USDA Forest Service boundaries. Office address and phone from the Forest Service offices page.
Sunrise & sunset today
Calculating…
Calculated in your browser for the summit coordinates (standard sunrise equation, Eastern Time). From a high summit with an open horizon, the sun appears a few minutes earlier and sets a few minutes later than the sea-level times shown here; the extra minutes are estimated from the summit's height.
Safety
Consider a hikeSafe card. It's sold by NH Fish and Game and helps cover the cost of a search and rescue if you need one, under NH rules. Carry the ten essentials, tell someone your plan and know when to turn back.
Huts, shelters & campgrounds nearby
Old Stage Campground(Campground / campsite) — 3.6 mi
Barrington Shores Campground(Campground / campsite) — 8.1 mi
Ayers Lake Farm Campground & Cottages(Campground / campsite) — 9.4 mi
KOA - Stratford / Lake Winnipesaukee South(Campground / campsite) — 11.3 mi
Great Bay Camping(Campground / campsite) — 11.7 mi
Dixon's Campgrounds(Campground / campsite, Dixon's Coastal Maine Campground) — 13.0 mi
Home values: Zillow Home Value Index (ZHVI), typical home, as of the month shown; when Zillow has no figure for a town, we show the Census ACS 5-year median home value (table B25077). Income: U.S. Census Bureau ACS 5-year 2020–2024 (via Census Reporter), table B19013. Population: same ACS 5-year release, table B01003.
Straight-line distance from the summit. Lakes and towns: NH Fish and Game fishing guide data. Boat launches: NH Fish and Game public access sites. Swimming: NH Fish and Game access sites and NH DES monitored public beaches. No badge means access is unknown, not that there is none. Check local rules before you go.
This peak is outside USFS trail data. Check the land manager below for official trail info.
Summit sunrise & sunset by month
Mid-month
Sunrise
Sunset
Turn around by*
Jan
7:12 AM
4:31 PM
2:31 PM
Feb
6:42 AM
5:12 PM
3:12 PM
Mar
6:57 AM
6:48 PM
4:48 PM
Apr
6:02 AM
7:24 PM
5:24 PM
May
5:20 AM
7:58 PM
5:58 PM
Jun
5:02 AM
8:24 PM
6:24 PM
Jul
5:16 AM
8:22 PM
6:22 PM
Aug
5:48 AM
7:48 PM
5:48 PM
Sep
6:21 AM
6:56 PM
4:56 PM
Oct
6:55 AM
6:02 PM
4:02 PM
Nov
6:35 AM
4:20 PM
2:20 PM
Dec
7:08 AM
4:08 PM
2:08 PM
Computed for the summit coordinates with the NOAA solar formula, Eastern Time (DST applied). *Rule of thumb: be heading down at least 2 hours before sunset; start early enough to reach the summit before this time.
Best month to hike
Sep — the month with the fewest wet days (≥1 mm precipitation) among months where the average summit high reaches 50°F.
Month
Avg high
Avg low
Wet days
Jan
33°F
17°F
29%
Feb
35°F
18°F
34%
Mar
43°F
26°F
33%
Apr
55°F
37°F
37%
May
66°F
48°F
33%
Jun
75°F
58°F
39%
Jul
81°F
65°F
37%
Aug
79°F
63°F
30%
Sep
72°F
56°F
28%
Oct
60°F
46°F
32%
Nov
48°F
34°F
29%
Dec
38°F
24°F
37%
2006–2025 daily ERA5 reanalysis from the Open-Meteo archive, adjusted to summit elevation. Reanalysis smooths mountain weather; summits like Mount Washington are often colder and windier than shown.
Getting there & parking
Nearest towns
Dover — 1.0 mi
Rollinsford — 3.1 mi
Somersworth — 3.7 mi
Closest airports with scheduled flights
Portsmouth International Airport at Pease (PSM) — about 9.4 mi straight line
Manchester-Boston Regional Airport (MHT) — about 34.4 mi straight line
Portland International Jetport (PWM) — about 41.2 mi straight line
Campgrounds & places to stay
KOA campgrounds
KOA - Stratford / Lake Winnipesaukee South — 11.3 mi, Strafford · Directions