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Olsen Slough

North Dakota
1.44 km²
47.8556, -98.1812
13 species
NHD 147439288
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Imagery © Esri
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About Olsen Slough

Olsen Slough is a natural lake or pond in North Dakota, United States. It covers approximately 1.44 km² (355 acres). The lake centroid is located at 47.8556° N, 98.1812° W. 13 fish species are commonly found in waters like this one, including 2 introduced species. Lake boundary and identifier come from the USGS National Hydrography Dataset.

At a glance

Best season
May – September
Ice-off through early fall
Natural lake
Medium
Great for a day trip
Species diversity
Diverse
13 species in this region
Access
Public waterbody
Check North Dakota fishing regulations

Weather at Olsen Slough

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Best fishing times today

Day length: 11h 24m
Dawn12:09
Sunrise12:39
Sunset00:04
Dusk00:35

Bite windows today

  • Dawn11:39 – 13:39Excellent
  • Morning13:39 – 18:22Good
  • Midday18:22 – 21:04Calm
  • Afternoon21:04 – 23:04Good
  • Dusk23:04 – 01:05Excellent
  • Night01:05 – 11:39Good
Moon: 13% · waning↑ 09:10

Fish species

Species data comes from GBIF and is refreshed by donors.Support this →

Showing 13 of 13 species

Gear & tips for rainbow trout

Rod
5- to 7-weight fly rod
Sage X
Vision XO
Loop Q
Reel
5/6-weight fly reel
Mainline
WF-5/6 floating line + intermediate
Leader
Tapered + 0.20 mm tippet
Lures / bait
  • Streamers
  • Egg patterns
  • Nymphs
  • Dry flies
  • Boobies
Find fly fishing gear at Sportfish
Season
April–November (put-and-take year-round)
Time of day
All day
Tip

Put-and-take fishing is common. Vary your depth. Popular Swedish waters: Bunn, Sommen and many small stocked put-and-take ponds.

Full guide

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Everything you need before you launch — license, regulations, and current water conditions.

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Water conditions & levels
USGS gauge data near Olsen Slough
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Frequently asked questions

What fish species live in Olsen Slough?

Species you can expect in or near Olsen Slough include Rainbow Trout, Crappie, Yellow Perch, Flathead Catfish, Northern Pike, Smallmouth Bass, Largemouth Bass, Channel Catfish, and others. The list is based on species present in North Dakota waters and GBIF occurrence records.

How big is Olsen Slough?

Olsen Slough covers approximately 1.44 square kilometres (355 acres), based on the USGS National Hydrography Dataset.

Where is Olsen Slough located?

Olsen Slough is located in North Dakota, United States, with its centroid at 47.8556°, -98.1812°.

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Data sources: USGS National Hydrography Dataset · GBIF