According to Wikipedia, "The bog, which covers 320 acres (130 ha), has been forming since the end of the last glacial period 10,000 years ago and is surrounded by an old-growth forest of boreal species typically found much farther north, such as black spruce, balsam fir, eastern hemlock, and yellow birch."

This loop can be done in either direction beginning at one of two trailheads on Bear Meadows Road. One lies at the Tussey Mountain trailhead and the other where John Wert Path begins. The route includes a short streth of old logging road, and the Jean Aron Path parallels Bear Meadows Road between the trailheads.

Accessible year-round, the summer and fall months are some of the most visited. Melting snow and frequent rain can make running in the winter and spring slightly more difficult. If visiting in the summer, look for the wild blueberries lining the path and be mindful of the black bear that reside around the meadow.

Sources: https://en.wikipedia.org/wiki/BearMeadowsNaturalArea https://www.pahikes.com/bear-meadows-natural-area