range from about at Petersburg to at Spruce Knob. A rain shadow effect caused by slopes of the Allegheny Front results in of annual precipitation on the west side and about half that on the east side. Headwaters of six major river systems are located within the forest: Monongahela, Potomac, Greenbrier, Elk, Tygart, and Gauley. Twelve rivers are currently under study for possible inclusion in the National Wild and Scenic Rivers System. Ecology The forest is noted for its rugged landscape, views, blueberry thickets, highland bogs and "sods", and open areas with exposed rocks. In addition to the second-growth forest trees, the wide range of botanical species found includes rhododendron, laurel on the moist west side of the Allegheny Front, and cactus and endemic shale barren species on the drier eastern slopes. There are 230 known species of birds inhabiting the Monongahela National Forest: 159 are known to breed there, 89 are Neotropical migrants; 71 transit the forest during migration, but do not breed there, and 17 non-breeding species are Neotropical. The Brooks Bird Club (BBC) conducts an annual bird banding and survey project in the vicinity of Dolly Sods Scenic Area during migration (August - September). The forest provides habitat for 9 federally listed endangered or threatened species: 2 bird species, 2 bat species, 1 subspecies of flying squirrel, 1 salamander species, and 3 plant species. Fifty other species of rare/sensitive plants and animals also occur in the forest. Larger animals and game species found in the forest include black bear, wild turkey, white-tailed deer, gray and fox squirrels, rabbits, snowshoe hare, woodcock, and grouse. Limited waterfowl habitat exists in certain places. Furbearers include beaver, red and gray fox, bobcat, fisher, river otter, raccoon and mink. Other hunted species include coyotes, skunks, opossums, woodchucks, crows, and weasels. There are 12 species of game (pan) fish and 60 species of nongame or forage fish. Some 90% of the trout waters of West Virginia are within the forest. Recreation The Monongahela National Forest is a recreation destination and tourist attraction, hosting approximately 3 million visitors annually. The backwoods road and trail system is used for hiking, mountain biking, horse riding. Many miles of railroad grades are a link in the recreation use of the forest. (The longest is the Glady to Durbin West Fork Railroad Trail which is long.) Recreation ranges from self-reliant treks in the wildernesses and backcountry areas, to