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Iowa, South Dakota Rivers
Live Conditions

Big Sioux River

Iowa, South Dakota396 miles3 Segments
Primary Flow
—
cfs
Gauge Height
—
ft
Water Temp
—
°F
Air Temp
—
°F
Basin SWE
—
in avg
Daylight
—
sunrise
5-Day Trend
—
 

River Profile

396 mi
Headwater
Mouth
North Canoe Launch → South Canoe LaunchNorth Canoe Launch → South Canoe Launch · 2.2 mi
South Canoe Launch → Gitchie ManitouSouth Canoe Launch → Gitchie Manitou (Far walk due to rivers new course) · 8 mi
Gitchie Manitou → 9 Mile PWAGitchie Manitou (Far walk due to rivers new course) → 9 Mile PWA · 4.8 mi
9 Mile PWA → Klondike Bridge Access9 Mile PWA → Klondike Bridge Access · 7.8 mi
Klondike Bridge Access → Klondike SouthKlondike Bridge Access → Klondike South · 0.1 mi
Klondike South → Big Sioux Wildlife Area - Highway 18Klondike South → Big Sioux Wildlife Area - Highway 18 · 8 mi
Big Sioux Wildlife Area - Highway 18 → McKee AccessBig Sioux Wildlife Area - Highway 18 → McKee Access · 12.2 mi
McKee Access → Oakridge Public Water AccessMcKee Access → Oakridge Public Water Access · 10.6 mi
Oakridge Public Water Access → RollingOakridge Public Water Access → Rolling Boat Ramp · 4 mi
Rolling → Rock Sioux AccessRolling Boat Ramp → Rock Sioux Access · 5.3 mi
Rock Sioux Access → Oak GroveRock Sioux Access → Oak Grove State Park · 2 mi
Oak Grove → Carr's LandingOak Grove State Park → Carr's Landing · 6.1 mi
Carr's Landing → Big Sioux Park AccessCarr's Landing → Big Sioux Park Access · 18.8 mi
Big Sioux Park Access → Silver Mapple AccessBig Sioux Park Access → Silver Mapple Access · 10.3 mi
Silver Mapple Access → Millsite AccessSilver Mapple Access → Millsite Access · 5.4 mi
Millsite Access → StoneMillsite Access → Stone State Park · 32.3 mi
Stone → McCook Public Water AccessStone State Park → McCook Public Water Access · 2.5 mi
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Gauge(13)
Boat Ramp(19)
Whitewater
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Segments
17 segments
SegmentMilesRiver MileCFSStatusFloat Est.Rapids
North Canoe Launch → South Canoe Launch
2.2RM 253.0 – 255.2——0:38hrs—
South Canoe Launch → Gitchie Manitou (Far walk due to rivers new course)
8.0RM 255.2 – 263.2——2:17hrs—
Gitchie Manitou (Far walk due to rivers new course) → 9 Mile PWA
4.8RM 263.2 – 268.0——1:22hrs—
9 Mile PWA → Klondike Bridge Access
7.8RM 268.0 – 275.8——2:14hrs—
Klondike Bridge Access → Klondike South
0.1RM 275.8 – 275.9——0:02hrs—
Klondike South → Big Sioux Wildlife Area - Highway 18
8.0RM 275.9 – 283.9——2:17hrs—
Big Sioux Wildlife Area - Highway 18 → McKee Access
12.2RM 283.9 – 296.1——3:29hrs—
McKee Access → Oakridge Public Water Access
10.6RM 296.1 – 306.7——3:02hrs—
Oakridge Public Water Access → Rolling Boat Ramp
4.0RM 306.7 – 310.7——1:09hrs—
Rolling Boat Ramp → Rock Sioux Access
5.3RM 310.7 – 316.0——1:31hrs—
Rock Sioux Access → Oak Grove State Park
2.0RM 316.0 – 318.0——0:34hrs—
Oak Grove State Park → Carr's Landing
6.1RM 318.0 – 324.1——1:45hrs—
Carr's Landing → Big Sioux Park Access
18.8RM 324.1 – 342.9——5:22hrs—
Big Sioux Park Access → Silver Mapple Access
10.3RM 342.9 – 353.2——2:57hrs—
Silver Mapple Access → Millsite Access
5.4RM 353.2 – 358.6——1:33hrs—
Millsite Access → Stone State Park
32.3RM 358.6 – 390.9——9:14hrs—
Stone State Park → McCook Public Water Access
2.5RM 390.9 – 393.4——0:43hrs—

Basin Snowpack

SNOTEL 2
  • Blind Park
    6,900 ft
    --
    --%
  • North Rapid Creek
    6,150 ft
    --
    --%

Quick Facts

Total Length
396 miles
Gauge Stations
13
Segments
3
Boat Ramps
16
Access Sites
19

Elevation Profile

Elevation data not yet available for this river.

Boat Ramps & Access

19 sites · 16 boat ramps
  • RM 143

    Kamp GPA

    Boat rampSouth Dakota Game, Fish and Parks
  • RM 253

    North Canoe Launch

    Boat rampSouth Dakota Game, Fish and Parks
  • RM 255

    South Canoe Launch

    Boat rampSouth Dakota Game, Fish and Parks
  • RM 263

    Gitchie Manitou (Far walk due to rivers new course)

    Hand launch✓ ParkingIowa Department of Natural Resources
  • RM 268

    9 Mile PWA

    Boat rampSouth Dakota Game, Fish and Parks
  • RM 276

    Klondike Bridge Access

    Boat ramp✓ ParkingIowa Department of Natural Resources
  • RM 276

    Klondike South

    Boat rampSouth Dakota Game, Fish and Parks
  • RM 284

    Big Sioux Wildlife Area - Highway 18

    Boat ramp✓ ParkingIowa Department of Natural Resources
  • RM 296

    McKee Access

    Boat ramp✓ ParkingIowa Department of Natural Resources
  • RM 307

    Oakridge Public Water Access

    Boat rampSouth Dakota Game, Fish and Parks
Fishing Intel

Current Hatches

No hatch calendar on file for this river yet.

Recommended Flies — Mid October

No recommended flies on file for this river yet.

Float time estimates
  • North Canoe Launch → South Canoe Launch
    2.2 mi
    --
    --:--
    hrs:min
  • South Canoe Launch → Gitchie Manitou (Far walk due to rivers new course)
    8 mi
    --
    --:--
    hrs:min
  • Gitchie Manitou (Far walk due to rivers new course) → 9 Mile PWA
    4.8 mi
    --
    --:--
    hrs:min
  • 9 Mile PWA → Klondike Bridge Access
    7.8 mi
    --
    --:--
    hrs:min
  • Klondike Bridge Access → Klondike South
    0.1 mi
    --
    --:--
    hrs:min
  • Klondike South → Big Sioux Wildlife Area - Highway 18
    8 mi
    --
    --:--
    hrs:min
  • Big Sioux Wildlife Area - Highway 18 → McKee Access
    12.2 mi
    --
    --:--
    hrs:min
  • McKee Access → Oakridge Public Water Access
    10.6 mi
    --
    --:--
    hrs:min
  • Oakridge Public Water Access → Rolling Boat Ramp
    4 mi
    --
    --:--
    hrs:min
  • Rolling Boat Ramp → Rock Sioux Access
    5.3 mi
    --
    --:--
    hrs:min
  • Rock Sioux Access → Oak Grove State Park
    2 mi
    --
    --:--
    hrs:min
  • Oak Grove State Park → Carr's Landing
    6.1 mi
    --
    --:--
    hrs:min
  • Carr's Landing → Big Sioux Park Access
    18.8 mi
    --
    --:--
    hrs:min
  • Big Sioux Park Access → Silver Mapple Access
    10.3 mi
    --
    --:--
    hrs:min
  • Silver Mapple Access → Millsite Access
    5.4 mi
    --
    --:--
    hrs:min
  • Millsite Access → Stone State Park
    32.3 mi
    --
    --:--
    hrs:min
  • Stone State Park → McCook Public Water Access
    2.5 mi
    --
    --:--
    hrs:min
Season Timing
Fishing
Floating
Runoff
J
F
M
A
M
J
J
A
S
O
N
D

Regulations & Alerts

Spring Runoff Advisory

Water levels rising due to snowmelt. Exercise caution on all sections.

Browns Canyon National Monument

Special management area. No motorized boats permitted.

Catch & Release

Browns Canyon section: catch & release only for all trout species.

Bag & Possession Limits

Standard CO regulations: 4 trout per day, only 1 over 16".

Shuttle Distances

North Canoe Launch→South Canoe Launch

2.2 mi

river miles (driving distance varies)

South Canoe Launch→Gitchie Manitou (Far walk due to rivers new course)

8 mi

river miles (driving distance varies)

Gitchie Manitou (Far walk due to rivers new course)→9 Mile PWA

4.8 mi

river miles (driving distance varies)

9 Mile PWA→Klondike Bridge Access

7.8 mi

river miles (driving distance varies)

Klondike Bridge Access→Klondike South

0.1 mi

river miles (driving distance varies)

Klondike South→Big Sioux Wildlife Area - Highway 18

8 mi

river miles (driving distance varies)

Big Sioux Wildlife Area - Highway 18→McKee Access

12.2 mi

river miles (driving distance varies)

McKee Access→Oakridge Public Water Access

10.6 mi

river miles (driving distance varies)

Oakridge Public Water Access→Rolling Boat Ramp

4 mi

river miles (driving distance varies)

Rolling Boat Ramp→Rock Sioux Access

5.3 mi

river miles (driving distance varies)

Rock Sioux Access→Oak Grove State Park

2 mi

river miles (driving distance varies)

Oak Grove State Park→Carr's Landing

6.1 mi

river miles (driving distance varies)

Carr's Landing→Big Sioux Park Access

18.8 mi

river miles (driving distance varies)

Big Sioux Park Access→Silver Mapple Access

10.3 mi

river miles (driving distance varies)

Silver Mapple Access→Millsite Access

5.4 mi

river miles (driving distance varies)

Millsite Access→Stone State Park

32.3 mi

river miles (driving distance varies)

Stone State Park→McCook Public Water Access

2.5 mi

river miles (driving distance varies)

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