| Halfway Run Natural Area | |
| Map: | USA Pennsylvania |
| Location: | Union County, Pennsylvania |
| Nearest Town: | Rebersburg |
| Coordinates: | 40.9966°N -77.1781°W |
Halfway Run Natural Area is a 407acres protected area in Centre County, Pennsylvania, United States. It is part of Bald Eagle State Forest,[1] and is a short distance from R.B. Winter State Park.[2]
The area protects a glaciated landscape of a type uncommon for Central Pennsylvania, along both banks of Halfway Run, which has been designated as a stream of unimpaired quality. The area is known for numerous pingo scars from the age of glaciation, in the form of ponds filling pits that formed when small ice-covered hills collapsed. Wild trout naturally reproduce in Halfway Run, and in springtime various branches of the stream contribute to vernal pools that are breeding spots for amphibians.