Camp Lewis
Campground
Campground · 4.0 mi from the trail
New Jersey · Bouldering · Denville · Near Hackettstown
Fanger Slapper
- V5
- grade
- Bouldering Pads
- style
- Apr, Jun–Oct
- best months
This is the hardest climb catalogued at Hogs Pen, standing at the top of the V1–V5 range established across the eight routes documented at the crag.
Around this trail
Add any of these when you start a tripSleep close Eat after La Cucina
Restaurant
On your way back · 1 mi
If it rainsJerrye & Roy Klotz, MD, CC BY-SA 3.0 · Wikimedia CommonsBoonton Historical Society and Museum
Museum
Museum · 3.2 mi from HackettstownHistorical society and museum in Boonton, New Jersey
Places © OpenStreetMap contributors · Photos: Jerrye & Roy Klotz, MD, CC BY-SA 3.0 (commons)
More in Hackettstown
Parsippany Rock HouseRock climbing · ~6 min drivePhoto: Magpieturtle, CC BY 4.0 (via Wikimedia Commons)- Cedar Lake BouldersRock climbing · Next door
- Christopher's RockRock climbing · ~6 min drive
- Upper BouldersRock climbing · ~6 min drive
- Lower BouldersRock climbing · ~6 min drive
- Kincaid WoodsRock climbing · ~7 min drive
- b. North CentralRock climbing · ~9 min drive
- Upper SolitudeRock climbing · ~10 min drive
- Middle SolitudeRock climbing · ~10 min drive
- Pyramid Mountain / Booze WallRock climbing · ~10 min drive
Best time to visit Fanger Slapper
Best months: April and June–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
38° / 21°
11 wet
Feb
40° / 22°
10 wet
Mar
48° / 29°
11 wet
Apr
61° / 39°
12 wet
May
71° / 49°
13 wet
Jun
81° / 59°
12 wet
Jul
85° / 64°
11 wet
Aug
84° / 62°
10 wet
Sep
77° / 54°
9 wet
Oct
64° / 42°
11 wet
Nov
53° / 33°
9 wet
Dec
42° / 26°
11 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Boonton 1 Se, NJ, 4.1 mi away at 280 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
