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Au Sable River in Michigan

River62.1 mi

Around here

Around Au Sable River

Kneff Lake Campground3.1 miWakeley Lake Campground6.3 mi20 mi

Camping5

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

About this river

Au Sable River is a 62.1 mile river. Streamflow is measured at the USGS gauge AU Sable River near Red Oak, MI (site 04136000). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1909 to 2026

Au Sable River typically runs highest in April, at a median 1,190 cfs, and lowest in August, at 616 cfs. The highest flow on record for any single day is 3,220 cfs, in 1998.

Show the numbers
Typical flow by month at AU Sable River near Red Oak, MI, in cfs
MonthTypical (cfs)Usual range (cfs)
January728652 to 844
February729640 to 800
March861706 to 1,040
April1,190949 to 1,520
May992848 to 1,180
June780687 to 959
July677587 to 749
August616567 to 698
September634547 to 730
October686618 to 844
November778661 to 905
December768680 to 882

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 36 years of record. Statistics published by the US Geological Survey for AU Sable River near Red Oak, MI (site 04136000). 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 Au Sable River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

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