Powdermill Run is a 4.36 mi (7.02 km) long 2nd order tributary to White Oak Run in Westmoreland County, Pennsylvania. This stream passes through the Powdermill Nature Preserve of the Carnegie Museum.

Powdermill Run Tributary to White Oak Run
Location of Powdermill Run mouth Show map of Pennsylvania Powdermill Run (White Oak Run tributary) (the United States) Show map of the United States
Location
Country	United States
State	Pennsylvania
County	Westmoreland
Physical characteristics
Source	Linn Run/Clear Run divide
• location	about 1 mile west of Bald Knob[1]
• coordinates	40°07′05″N 079°13′31″W[2]
• elevation	2,370 ft (720 m)[1]
Mouth	White Oak Run
• location	about 0.25 miles southwest of Weaver Mill, Pennsylvania[1]
• coordinates	40°10′21″N 079°16′08″W[2]
• elevation	1,332 ft (406 m)[2]
Length	4.36 mi (7.02 km)[3]
Basin size	4.22 square miles (10.9 km2)[4]
Discharge
• location	White Oak Run
• average	10.20 cu ft/s (0.289 m3/s) at mouth with White Oak Run[4]
Basin features
Progression	northwest
River system	Loyalhanna Creek
Tributaries
• left	unnamed tributaries
• right	unnamed tributaries

Variant names

According to the Geographic Names Information System, it has also been known historically as:[2]

• Powder Mill Creek
• Powder Mill Run
• Powdermill Creek
• Tributary No.1 to White Oak Run

Course

Powdermill Run rises on the Linn Run/Clear Run divide about 1 mile west of Bald Knob in Westmoreland County. Powdermill Run then flows northwest to meet White Oak Run about 0.25 miles southwest of Weaver Mill, Pennsylvania.[1]

Watershed

Powdermill Run drains 4.22 square miles (10.9 km²) of area, receives about 52.1 in/year of precipitation, has a topographic wetness index of 359.94, and has an average water temperature of 8.58 °C.[4] The watershed is 99% forested.[4]

Additional Images

This section is empty. You can help by adding to it. (May 2020)

References