"DISTURBANCES THAT CAN LEAD TO THE INTRODUCTION OF EXOTIC AND AGGRESSIVE SPECIES ARE ONE OF THE LARGEST THREATS"
—Huntingdon County Natural Inventory statement on the Hawn's Bridge Peninsula, a Huntingdon County Natural Heritage Area
A developer has proposed constructing restaurants, cabins, campgrounds, a marina and other facilities and buildings on public land on an undeveloped peninsula at Raystown Lake.
Sadly, for Raystown's public land and for the Hawn's Bridge Peninsula Natural Heritage Area, the proposed development is EVEN WORSE than what we had imagined.
Public lands ranging from the top of Terrace Mountain to the tip of the Hawn's Bridge Peninsula in Raystown Lake would be impacted severely by the proposed construction of restaurants, cabins, campgrounds, a marina, and associated buildings.
This land is owned by the U.S. Army Corps of Engineers and is now in its natural state. The Hawn's Bridge Peninsula is of such high ecological significance that it is designated as a Huntingdon County Natural Heritage Area "of exceptional value".
The Hawn's Bridge Peninsula is part of the Raystown Dam Natural Heritage Area (Biological Diversity Area) identified in the Huntingdon County Natural Heritage Inventory [PDF]. The Inventory identifies such areas as "containing plants or animals of special concern at state or federal levels, exemplary natural communities, or exceptional native diversity."
The area in which a marina and other facilities are proposed includes red cedar-mixed hardwood rich shale woodland and Virginia pine-mixed hardwood shale woodland communities. These rare habitats support two plant species endemic to shale barrens: the shale barrens evening primrose (Oenothera argillocola) (PA Threatened) and Kate's mountain clover (Trifolium virginicum) (PA Endangered). Several invertebrate species associated with shale barrens and the surrounding xeric forest also are found there. These include the southern pine looper moth (Caripeta aretaria), the promiscuous angle (Semiothisa promisuata), and a noctuid moth (Properigea sp.).
According to the Huntingdon County Natural Heritage Inventory (p. 148), "The shale barren communities and associated plant species depend upon the harsh conditions found on these steep, dry slopes where competition from other species is low. Disturbances that can lead to the introduction of exotic and aggressive species are one of the largest threats." The establishment of campgrounds, cabins, restaurants, and a marina and associated facilities on the Hawn's Bridge Peninsula would certainly cause the types of disturbances which the Inventory warns against.
In addition, the Hawn's Bridge Peninsula is clearly visible from the Hawn's Overlook and from the Allegrippis Trails. From an aesthetic viewpoint, converting the forested peninsula to an entertainment-oriented facility with a marina would create an eyesore.
Send comments to: CNAB-CC@usace.army.mil