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The Marina at Sheridan Lake

Beaver Creek near Rapid City, SD

Stream48.5 mi

Around here

Around Beaver Creek

Hidden Lake Campground and Resort10.4 miAngostura Reservoir9.5 mi5 mi

Data Source: Recreation.gov · Public land: USGS PAD-US

About this river

Beaver Creek is a 48.5 mile stream near The Marina at Sheridan Lake in South Dakota. Streamflow is measured at the USGS gauge Beaver Creek near Buffalo Gap, SD (site 06402500). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1939 to 2026

Beaver Creek typically runs highest in February, at a median 10 cfs, and lowest in August, at 3.3 cfs. The highest flow on record for any single day is 313 cfs, in 1955.

Show the numbers
Typical flow by month at Beaver Creek near Buffalo Gap, SD, in cfs
MonthTypical (cfs)Usual range (cfs)
January108.4 to 11
February109.0 to 11
March9.78.5 to 11
April8.34.4 to 10
May5.61.2 to 9.3
June6.41.6 to 10
July4.00.8 to 7.5
August3.30.8 to 7.0
September5.83.0 to 8.9
October8.75.7 to 10
November9.68.0 to 11
December9.98.4 to 11

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 87 years of record. Statistics published by the US Geological Survey for Beaver Creek near Buffalo Gap, SD (site 06402500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

2 mapped launches sit in the mapped area of Beaver Creek, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

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