Brush Mountain (Blair County, Pennsylvania)

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Brush Mountain
The higher southwest section of Brush Mountain looking southwest toward Altoona. Interstate 99 is lower right. The Allegheny Front is center right, with Blue Knob in the center.
Highest point
Elevation	2,557 ft (779 m)
Coordinates	40°29′15.68″N 78°21′7.79″W / 40.4876889°N 78.3521639°W / 40.4876889; -78.3521639
Geography
Location	Blair County, Pennsylvania, U.S.
Parent range	Appalachian Mountains
Topo map	USGS Millheim (PA) Quadrangle
Climbing
First ascent	unknown

Brush Mountain is a stratigraphic ridge in the Appalachian Mountains of central Pennsylvania, United States, lying east of the Allegheny Front and west of Tussey Mountain. It runs along the southeast side of the Little Juniata River and forms a horseshoe around Sinking Run, and is the westernmost ridge in its section of the Ridge-and-valley Appalachians. The western ridge line separates the Logan Valley from the Sinking Valley.

Brush Mountain lies entirely in Blair County. It runs from the water gap formed with Bald Eagle Mountain by the Little Juniata River at Tyrone, south to the Sinking Valley anticline fold near Altoona then turns northeast to the Canoe Valley syncline fold, where the ridge becomes Canoe Mountain. The total length of Brush Mountain is approximately 30 miles (48 km).

No major roads or rivers cross the ridge or run through gaps. Kettle Reservoir collects surface runoff from a small area in the fold, and the dam was made by filling in a small ravine. Kettle Road, a secondary road, runs through the ravine near the dam east into Sinking Valley. A major power transmission line crosses the ridge twice, midway between the folds.

The Brush Mountain Ridge is popular with soaring birds and glider pilots ridge soaring along its slopes. This ridge is part of a chain of ridges that stretch south to Tennessee. The fold at the south end of Brush Mountain forms a gap in the chain, with the continuation of the ridge line 6 miles (10 km) south on Dunning Mountain.

Pennsylvania State Game Lands Number 166 lies on Brush Mountain south of Sinking Hollow and on Canoe Mountain and in the valley between.^[1]