Ralph Stover State Park

Ralph Stover State Park is a Pennsylvania state park on 45 acres (18 ha) in Plumstead and Tinicum Townships, Bucks County, Pennsylvania in the United States. It is a very popular destination for whitewater kayaking on Tohickon Creek and rock climbing on High Rocks (Triassic sandstone of the Newark Group[3]). Ralph Stover State Park is two miles (3.2 km) north of Point Pleasant near Pennsylvania Route 32.

Ralph Stover State Park
IUCN category III (natural monument or feature)
The view of Tohickon Creek from the top of High Rocks during autumn.
Location of Ralph Stover State Park in Pennsylvania
LocationBucks, Pennsylvania, United States
Coordinates40°26′04″N 75°05′55″W
Area45 acres (18 ha)[1]
Elevation256 ft (78 m)[2]
Established1931[1]
Named forRalph Stover
Governing bodyPennsylvania Department of Conservation and Natural Resources
WebsiteRalph Stover State Park

History

Tohickon Creek was named by the Lenape some of the first inhabitants of the area. "To-Hick-Hanne" means "Deer-Bone-Creek". Ralph Stover State Park was the site of an 18th-century gristmill that was built on Tohickon Creek by the park's namesake, Ralph Stover. Remnants of the mill and mill race can still be seen near Tohickon Creek.

The Stover family gave their land to the Commonwealth of Pennsylvania in 1931. The recreational facilities were built during the Great Depression by the Federal Works Progress Administration created by U.S. President Franklin D. Roosevelt to provide work for the unemployed. Author James A. Michener donated the High Rocks area to the park in 1956. Although "High Rocks State Park" is listed in the United States Geological Survey Geographic Names Information System and the coordinates given in USGS GNIS are located here, it was never an official name according to the Pennsylvania Department of Conservation and Natural Resources or a separate park.

Recreation

High Rocks is a 200-foot (60 m) sheer rock face, composed of smooth red Lockatong Formation argillite interspersed with friable Brunswick Formation shale. Since slippery and crumbly rock makes climbing somewhat difficult here, High Rocks is notable mostly to local climbers. Over sixty routes have been put up here over seventeen walls, with difficulties up to 5.12c/d and V7. Most are used for trad climbing and top roping, with some bouldering and sport routes present as well.[4][5]

Tohickon Creek offers whitewater conditions for kayaking in the spring with the winter snow melt and several times a year when water is released from Lake Nockamixon. The creek is also a warm water fishery with smallmouth bass, sunfish, carp and catfish. The Pennsylvania Fish and Boat Commission also stocks the creek with trout.[1]

A hiking trail of 1 mile (1.6 km) passes the millrace. There is a shaded picnic area along Tohickon Creek and a scenic vista at the top of High Rocks.[1]

Nearby state parks

The following state parks are within 30 miles (48 km) of Ralph Stover State Park:[6][7][8]


Climate

According to the Trewartha climate classification system, Ralph Stover State Park has a Temperate Continental climate (Dc) with hot summers (a), cold winters (o) and year-around precipitation. Dcao climates are characterized by at least one month having an average mean temperature ≤ 32.0 °F (0 °C), four to seven months with an average mean temperature ≥ 50.0 °F (10 °C), at least one month with an average mean temperature ≥ 72.0 °F (22 °C) and no significant precipitation difference between seasons. Although most summer days are slightly humid at Ralph Stover State Park, episodes of heat and high humidity can occur with heat index values > 105 °F (41 °C). Since 1981, the highest air temperature was 102.0 °F (39 °C) on 07/22/2011, and the highest daily average mean dew point was 74.3 °F (24 °C) on 08/13/2016. The average wettest month is July which corresponds with the annual peak in thunderstorm activity. Since 1981, the wettest calendar day was 6.91 inches (176 mm) on 08/27/2011. During the winter months, the plant hardiness zone is 6b with an average annual extreme minimum air temperature of −1.7 °F (−19 °C).[9] Since 1981, the coldest air temperature was −14.2 °F (−26 °C) on 01/22/1984. Episodes of extreme cold and wind can occur with wind chill values < −13 °F (−25 °C). The average annual snowfall (Nov-Apr) is between 30 and 36 inches (76 and 91 cm), and the average snowiest month is February which corresponds with the peak in nor’easter activity.

Climate data for Ralph Stover State Park (Ranger Station), 1981-2010 normals, extremes 1981-2018
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 70.2
(21.2)		 77.9
(25.5)		 86.7
(30.4)		 93.5
(34.2)		 94.5
(34.7)		 95.0
(35.0)		 102.0
(38.9)		 98.9
(37.2)		 97.0
(36.1)		 89.0
(31.7)		 80.1
(26.7)		 74.4
(23.6)		 102.0
(38.9)
Average high °F (°C) 38.4
(3.6)		 41.8
(5.4)		 50.2
(10.1)		 62.5
(16.9)		 72.5
(22.5)		 81.0
(27.2)		 85.2
(29.6)		 83.4
(28.6)		 76.6
(24.8)		 65.2
(18.4)		 54.1
(12.3)		 42.7
(5.9)		 62.9
(17.2)
Daily mean °F (°C) 29.6
(−1.3)		 32.4
(0.2)		 40.0
(4.4)		 51.0
(10.6)		 60.7
(15.9)		 69.8
(21.0)		 74.3
(23.5)		 72.7
(22.6)		 65.4
(18.6)		 53.8
(12.1)		 44.1
(6.7)		 34.2
(1.2)		 52.4
(11.3)
Average low °F (°C) 20.8
(−6.2)		 23.0
(−5.0)		 29.8
(−1.2)		 39.4
(4.1)		 48.9
(9.4)		 58.5
(14.7)		 63.4
(17.4)		 61.9
(16.6)		 54.1
(12.3)		 42.3
(5.7)		 34.1
(1.2)		 25.7
(−3.5)		 41.9
(5.5)
Record low °F (°C) −14.2
(−25.7)		 −5.7
(−20.9)		 0.5
(−17.5)		 16.3
(−8.7)		 31.7
(−0.2)		 39.5
(4.2)		 46.0
(7.8)		 40.4
(4.7)		 33.5
(0.8)		 22.6
(−5.2)		 10.0
(−12.2)		 −3.0
(−19.4)		 −14.2
(−25.7)
Average precipitation inches (mm) 3.45
(88)		 2.79
(71)		 3.86
(98)		 4.10
(104)		 4.29
(109)		 4.35
(110)		 5.01
(127)		 4.04
(103)		 4.46
(113)		 4.29
(109)		 3.73
(95)		 4.05
(103)		 48.42
(1,230)
Average relative humidity (%) 67.3 63.8 59.4 58.1 62.7 68.3 68.3 70.9 72.2 70.1 69.3 69.3 66.7
Average dew point °F (°C) 20.1
(−6.6)		 21.5
(−5.8)		 27.0
(−2.8)		 36.8
(2.7)		 47.9
(8.8)		 58.9
(14.9)		 63.2
(17.3)		 62.7
(17.1)		 56.2
(13.4)		 44.3
(6.8)		 34.7
(1.5)		 25.2
(−3.8)		 41.6
(5.3)
Source: PRISM[10]

Ecology

According to the A. W. Kuchler U.S. potential natural vegetation types, Ralph Stover State Park would have a dominant vegetation type of Appalachian Oak (104) with a dominant vegetation form of Eastern hardwood forest (25).[11]

References
  1. "Ralph Stover State Park". Pennsylvania Department of Conservation and Natural Resources. Retrieved 2006-11-21.
  2. "Ralph Stover State Park". Geographic Names Information System. United States Geological Survey. August 2, 1979. Retrieved 2007-12-22.
  3. Geology and mineral resources of Bucks County, Pennsylvania, Bradford Willard, Jacob Freedman, D. B. McLaughlin, and others. 1959. 243 p., 24 pls., geol. map.
  4. "Rock Climbing Routes at Ralph Stover State Park; High Rocks". Rockclimbing.com. Archived from the original on December 30, 2008. Retrieved 2009-02-12.
  5. "Climbing Ralph Stover (High Rocks) State Park". Mountain Project. Retrieved 2009-02-12.
  6. "Find a Park by Region (interactive map)". Pennsylvania Department of Conservation and Natural Resources. Retrieved November 18, 2011.
  7. Michels, Chris (1997). "Latitude/Longitude Distance Calculation". Northern Arizona University. Retrieved 2008-04-23.
  8. 2007 General Highway Map Bucks County Pennsylvania (PDF) (Map). 1:65,000. Pennsylvania Department of Transportation, Bureau of Planning and Research, Geographic Information Division. Archived from the original (PDF) on 2011-11-06. Retrieved 2006-07-27. Note: shows Ralph Stover State Park
  9. "USDA Interactive Plant Hardiness Map". United States Department of Agriculture. Retrieved August 30, 2019.
  10. "PRISM Climate Group, Oregon State University". Retrieved August 30, 2019.
  11. "U.S. Potential Natural Vegetation, Original Kuchler Types, v2.0 (Spatially Adjusted to Correct Geometric Distortions)". Retrieved August 30, 2019.
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