- Elevation, modelled
- 91 m
- Tallest summit within 9.6 miles
- Whittemore Hill418 m · 8.8 mi
- Nearest byway
- The Apple Way of Londonderry14.6 mi off
- Sunset, June solstice
- 20:29local time
- Coordinates
- 42.7279, -71.6665
Impregnable is a artwork in New Hampshire, at a modelled 91 m. Whittemore Hill stands 418 m to the west, 8.8 miles off. The nearest named place is Ambush I (5 Pieces), a artwork less than a tenth of a mile away. The Apple Way of Londonderry passes 15 miles off.
- Material
- granite
Summits around it
The highest named summits within 9.6 miles of Impregnable. Elevation from each summit’s own record; bearing measured between the two coordinates.
| Summit | Bearing | Elevation | Distance |
|---|---|---|---|
| Whittemore Hill | W 267° | 418 m | 8.8 mi |
| Jones Hill | WSW 256° | 397 m | 9.2 mi |
| Barrett Hill | WNW 283° | 382 m | 7.6 mi |
| Fisk Hill | NW 307° | 369 m | 9.6 mi |
| Jefts Hill | WNW 290° | 344 m | 8.7 mi |
| Davis Hill | W 268° | 336 m | 7.8 mi |
| Merriam Hill | WNW 282° | 313 m | 6.5 mi |
| Pearl Hill | SW 220° | 310 m | 9.5 mi |
- 14.6 mi off the The Apple Way of Londonderry
- 17.2 mi off the General John Stark Scenic Byway
- 21.0 mi off the Amoskeag Millyard Scenic and Cultural Byway
- 23.7 mi off the Battle Road Scenic BywayNational
Named places within 25 miles
Artworks
- Ambush I (5 Pieces): 0.0 mi
- Peace Decisive Piece: 0.0 mi
- We Are One Together: 0.0 mi
- Old Man in the Mountain's New Home: 0.0 mi
- Altar To Humanity: 0.0 mi
Parks
- Andres Institute of Art Sculpture Park: 0.1 mi
- Nissitissit River Park: 0.4 mi
- Brookline Ball Park: 0.6 mi
- Max Cohen Memorial Grove (Town Beach): 0.6 mi
- Townsend State Forest Parking Area: 3.9 mi
Nature reserves
Peaks
- Potanipo Hill: 0.3 mi
- Rock Ramond: 1.2 mi
- Hobart Hill: 1.2 mi
- Coreys Hill: 1.4 mi
- Russell Hill: 1.5 mi
Historic sites
- Wallingford House: 4.7 mi
- Bayley House: 4.9 mi
- Peter Bertozzi and Squannacook River Wildlife Management Area Memorial: 6.4 mi
- Groton Leatherboard Memorial: 6.5 mi
- Peter E. Bertozzi Memorial: 6.6 mi
Attractions
- Yudicky Farm - Conservation Area: 7.8 mi
- Barrett House: 9.7 mi
- Barrett House: 10.0 mi
- Labyrinth: 10.5 mi
- SkyVenture: 11.5 mi
Museums: 49
- Always Ready Engine House: 3.9 mi
- Old Pine Hill School House: 6.8 mi
- Milford Historical Society: 7.4 mi
- The Cabinet Press Printing Museum: 7.5 mi
- Ashby Historical Society: 8.6 mi
Gardens: 33
- Maple Hill Gardens: 3.1 mi
- Merrimack Community Garden: 9.5 mi
- Katie's Garden: 9.8 mi
- Gate City Community Gardens: 10.0 mi
- Tara Heights Garden Center: 10.5 mi
Beaches: 31
- Silver Lake Beach: 4.2 mi
- Swimming Hole: 6.5 mi
- Lunenburg Town Beach: 11.1 mi
- The Beach at Arrive: 11.1 mi
- Baboosic Lake Town Beach: 11.4 mi
Waterfalls: 12
- The Falls: 2.5 mi
- Trap Falls: 6.7 mi
- Purgatory Lower Falls: 9.3 mi
- Middle Falls: 11.0 mi
- Upper Falls: 11.2 mi
Cliffs: 9
- Old Limestone Quarry: 8.4 mi
- Scenic Overlook / Sara's Resting Spot: 18.4 mi
- Ice Fall: 20.2 mi
- Ice Fall (in winter): 20.2 mi
- Rattlesnake Cliff: 22.8 mi
Picnic sites: 8
- Trap Falls: 6.7 mi
- Picnic Area: 14.8 mi
- Family Friendly Area (Multi-use): 17.2 mi
- Picnic Area: 21.1 mi
- North Grove Catering: 21.6 mi
Springs: 4
- The Ashburnham Spring: 13.6 mi
- Mystery Spring: 16.5 mi
- River Road Spring: 17.8 mi
- Falcon Spring: 23.3 mi
Rest areas: 3
| Date | Sunrise | Golden hour | Sunset |
|---|---|---|---|
| March equinox | 06:51 | 18:22 | 18:59 |
| June solstice | 05:09 | 19:46 | 20:29 |
| September equinox | 06:35 | 18:09 | 18:46 |
| December solstice | 07:15 | 15:31 | 16:16 |
Local time (America/New_York).
Months averaging 50–80 °F: May–Sep.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °F | 24 | 26 | 34 | 46 | 57 | 66 | 72 | 70 | 62 | 50 | 39 | 29 |
| Precip in | 3.8 | 3.3 | 3.7 | 4.0 | 3.5 | 4.3 | 3.5 | 3.9 | 4.2 | 4.8 | 3.6 | 4.5 |
1991–2020 U.S. Climate Normals, NOAA NCEI — E Milford, 7 mi away.
Location and category confirmed against OpenStreetMap.
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