Watershed
The Vermont portion of the Batten Kill watershed drains much of the northern portion of Bennington County and includes an area of approximately 200 square miles (520 km2). The New York portion of the watershed covers 207 square miles (540 km2).
The Vermont portion of the Batten Kill watershed is mountainous, steep and heavily forested. The tributaries are, for the most part, wooded, steep and narrow. National Forest Service land in this watershed is almost 44,000 acres (180 km2). The average yearly rainfall over the entire basin area is 42.9 inches (1,090 mm). The following river and tributary descriptions for the Vermont portion of the basin were taken in part from the United States Geological Survey publication Surface Waters of Vermont.
Mad Tom Brook rises on the southern slope of Mount Tabor in the northwestern part of the town of Peru at an altitude of 2,900 feet (880 m) above sea level. It flows southward and south-westward to East Dorset where it joins the beginning of the Batten Kill from the north. Its length is about 5.5 miles (8.9 km), and its fall is about 2,100 feet (640 m).
The West Branch rises on the northern slope of Bear Mountain in the southeastern part of the town of Rupert at an altitude of about 2,500 feet (760 m) above sea level. It flows eastward about 2 miles (3.2 km), then turns and flows southeastward to near Manchester Center. The West Branch has a length of about 9 miles (14 km) and a fall of 1,800 feet (550 m), of which 1,600 feet (490 m) occurs in the first 2 miles (3.2 km).
Bourn Brook rises in Bourn Pond in the northeastern part of the town of Sunderland at an altitude of 2,500 feet (760 m) above sea level. It flows somewhat east of north for about 2 miles (3.2 km) and then takes a northwesterly course to its junction with the Batten Kill half a mile south of Manchester Center. Its length is about 6 miles (9.7 km) and fall about 1,800 feet (550 m) of which 1,300 feet (400 m) of drop occurs within 1.5 miles (2.4 km) in the middle of its course.
Lye Brook rises in Lye Brook Meadows in the northeastern part of Sunderland at an elevation of 2,640 feet (800 m) above sea level. It flows in a northerly direction about 5 miles (8.0 km), then turns abruptly and flows southwestward to its junction with the Batten Kill. Its length is 6.2 miles (10.0 km), and its fall is 1,900 feet (580 m), of which 1,800 feet (550 m) occurs in the northward flowing stretch.
Mill Brook rises near the center of Sunderland at an altitude of 2,550 feet (780 m) above sea level and flows southwestward, westward and northwestward to its junction with the Batten Kill at Sunderland. Its length is approximately 4.5 miles (7.2 km) and its fall about 1,920 feet (590 m), of which 1,600 feet (490 m) occurs within 2.5 miles (4.0 km) of the head of the stream.
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