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South Platte River in Colorado

River42.0 mi

Around here

Around South Platte River

Rocky Mountain Arsenal National Wild…11.7 miTwo Ponds National Wildlife Refuge17.1 mi20 mi

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

About this river

South Platte River is a 42.0 mile river. Streamflow is measured at the USGS gauge South Platte River at Fort Lupton, CO (site 06721000). The National Hydrography Dataset places it at stream order 9. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1929 to 2026

South Platte River typically runs highest in June, at a median 620 cfs, and lowest in October, at 165 cfs. The highest flow on record for any single day is 8,410 cfs, in 2013.

Show the numbers
Typical flow by month at South Platte River at Fort Lupton, CO., in cfs
MonthTypical (cfs)Usual range (cfs)
January227124 to 283
February235124 to 316
March252104 to 351
April204110 to 380
May432235 to 1,050
June620369 to 1,215
July348251 to 532
August275150 to 410
September17681 to 257
October16591 to 257
November257123 to 390
December231121 to 310

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 51 years of record. Statistics published by the US Geological Survey for South Platte River at Fort Lupton, CO. (site 06721000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

8 mapped launches sit in the mapped area of South Platte River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

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