Alder Creek (Nevada County, California)

Alder Creek
Tributary to Prosser Creek
Alder Creek just below Fjord Road, Truckee
Location of Alder Creek mouth
Alder Creek (Nevada County, California) (the United States)
Location
CountryUnited States
StateCalifornia
CountyNevada
Physical characteristics
SourceNegro Canyon divide
 • locationDonner Ridge
 • coordinates39°22′59″N 120°37′34″W / 39.38306°N 120.62611°W / 39.38306; -120.62611
 • elevation7,490 ft (2,280 m)
MouthProsser Creek
 • location
Prosser Creek Reservoir, about 2 miles north-northwest of Polaris, California
 • coordinates
39°22′39″N 120°38′42″W / 39.37750°N 120.64500°W / 39.37750; -120.64500
 • elevation
5,741 ft (1,750 m)
Length8.89 mi (14.31 km)
Basin size12.65 square miles (32.8 km2)
Discharge 
 • locationProsser Creek
 • average15.55 cu ft/s (0.440 m3/s) at mouth with Prosser Creek
Basin features
ProgressionProsser CreekTruckee RiverPyramid Lake
River systemTruckee River
Tributaries 
 • leftunnamed tributaries
 • rightunnamed tributaries
BridgesSkislope Way, Snowpeak Way, Fjord Road, Schussing Way, Alder Creek Road, CA 89

Alder Creek is a perennial stream in Nevada County, California, mostly within the town of Truckee. Its source region near Donner Ridge is west of town, and its mouth at Prosser Creek Reservoir is north of town. It flows to the Truckee River via Prosser Creek.

Alder Creek panoramic view at Emigrant Trail footbridge
Alder Creek debouches into Prosser Creek Reservoir, at a location depending on the reservoir level, which is low here in October, 2020.