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Flatwater Fitness & Fun

Walnut River near Augusta, KS

River62.1 mi
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Around here

Around Walnut River

El Dorado Lake1.7 mi20 mi

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

About this river

Walnut River is a 62.1 mile river near Flatwater Fitness & Fun in Kansas. Streamflow is measured at the USGS gauge Walnut R at Winfield, KS (site 07147800). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1922 to 2026

Walnut River typically runs highest in June, at a median 526 cfs, and lowest in October, at 91 cfs. The highest flow on record for any single day is 85,200 cfs, in 1999.

Show the numbers
Typical flow by month at Walnut R at Winfield, KS, in cfs
MonthTypical (cfs)Usual range (cfs)
January14470 to 344
February17069 to 385
March27083 to 820
April398115 to 907
May465181 to 1,500
June526179 to 1,800
July23389 to 702
August11553 to 300
September9440 to 282
October9131 to 308
November14149 to 343
December14065 to 320

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 105 years of record. Statistics published by the US Geological Survey for Walnut R at Winfield, KS (site 07147800). 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 Walnut River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

  • Timber Creek Lake EastTimber Creek - Timber Creek LakePublic
  • Timber Creek Lake CentralTimber Creek - Timber Creek LakePublic
  • Timber Creek Lake WestTimber Creek - Timber Creek LakePublic
  • Butler State Fishing LakeButler State Fishing LakePublic
  • El Dorado-Area 8Walnut River - El Dorado LakePublic
  • El Dorado-Area 1Walnut River - El Dorado LakePublic
  • El Dorado-Area 4Walnut River - El Dorado LakePublic
  • El Dorado-Quail RunWalnut River - El Dorado LakePublic

Made to print

Put Walnut River on your wall

This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.

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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Walnut River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.

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