Johnson Run Natural Area
Encyclopedia
Johnson Run Natural Area is a 216 acres (87.4 ha) nature preserve
located in Cameron County
, Pennsylvania
. The topography
consists of a rugged, bouldered plateau dissected by steep-sided streams and covered with somewhere from 26 acres (10.5 ha) to 50 acres (20.2 ha) of old-growth forest containing Eastern Hemlock
and Eastern White Pine
. Some of the white pines are nearly 4 feet (121.9 cm) in diameter at breast height
.
Nature reserve
A nature reserve is a protected area of importance for wildlife, flora, fauna or features of geological or other special interest, which is reserved and managed for conservation and to provide special opportunities for study or research...
located in Cameron County
Cameron County, Pennsylvania
As of the census of 2000, there were 5,974 people, 2,465 households, and 1,624 families residing in the county. The population density was 15 people per square mile . There were 4,592 housing units at an average density of 12 per square mile...
, Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
. The topography
Topography
Topography is the study of Earth's surface shape and features or those ofplanets, moons, and asteroids...
consists of a rugged, bouldered plateau dissected by steep-sided streams and covered with somewhere from 26 acres (10.5 ha) to 50 acres (20.2 ha) of old-growth forest containing Eastern Hemlock
Eastern Hemlock
Tsuga canadensis, also known as eastern or Canadian hemlock, and in the French-speaking regions of Canada as pruche du Canada, is a coniferous tree native to eastern North America. It ranges from northeastern Minnesota eastward through southern Quebec to Nova Scotia, and south in the Appalachian...
and Eastern White Pine
Eastern White Pine
Pinus strobus, commonly known as the eastern white pine, is a large pine native to eastern North America, occurring from Newfoundland west to Minnesota and southeastern Manitoba, and south along the Appalachian Mountains to the northern edge of Georgia.It is occasionally known as simply white pine,...
. Some of the white pines are nearly 4 feet (121.9 cm) in diameter at breast height
Diameter at breast height
Diameter at breast height, or DBH, is a standard method of expressing the diameter of the trunk or bole of a standing tree. DBH is one of the most common dendrometric measurements....
.