Fish Iowa - Lakes, Ponds, and Reservoirs - Green Valley Lake


About Green Valley Lake

Surface Area (acres): 338.00
Maximum Depth (feet): 24.5 ft. (2024)
Motoring Restrictions: No motor restriction at no wake speed except for ski area
See below for additional location-specific regulations

Location

County: Union
Description: Green Valley
Coordinates: 41.10151134, -94.38541751

Amenities

Amenities at Green Valley Lake include:
  • Boat Access
  • Fishing Jetty
  • Accessible Pier
  • Boat Rental
  • Picnic Area
  • Beach
  • Trails
  • Accessible Facilities
  • Playground
  • Restrooms
  • Camping
  • Good/Excellent Shorefishing
  • Hard Surface Boat Ramp
  • Fish Cleaning Station

Fishing Report

Please contact the local fisheries management biologist for current information.

Fishing Summary

Spring electrofishing indicated a moderate density of Largemouth Bass up to 20 inches. There are good numbers of Bluegill in the 6-8 inch length range and Crappie in the 8-10 inch length range. - Last updated on 11/20/2024.

Consumption Guidelines

Iowa-Caught Fish Are Safe to Eat, In Almost All Cases

In nearly all cases, Iowa fish are safe to eat. Cleaning and/or preparing the meal causes most of the problems regarding taste or color of fish. Like all living creatures, fish are susceptible to diseases, parasites, and other naturally occurring conditions in the water. If you suspect your fish is affected by any of these conditions, do not eat it. Consider eating smaller and younger fish which usually have lower levels of contaminants than larger ones. Most contaminants accumulate in larger, older fish. For additional information, check out our resources for eating and cooking Iowa caught fish.

To learn more about fish tissue monitoring, visit our Fish Tissue Monitoring page .

Stocking

  • 9/14/23 - 2,014 Channel Catfish (7.8)
  • 09/23/2021 - 2,030 Channel Catfish (9.4)
  • fall 2019 - 2,581 Channel Catfish (9.4)
  • 04/30/2019 - 1,014,000 Walleye (Fry)
  • 05/08/2018 - 1,014,000 Walleye (Fry)
  • 9/27/2017 - 640 Channel Catfish (9.3")
  • 9/26/2017 - 884 Channel Catfish (9.3")
  • 9/14/2017 - 1,678 Channel Catfish (9.3")
  • 4/22/2017 - 1,905,000 Walleye (fry)
  • 09/16/2015 - 1,912 Channel Catfish (8")

Management

  • 2025 - Vegetation-Treatment: Algae control to lower pH prior to alum treatment.
  • 2024 - Survey-Population: A standard general survey was conducted using spring electrofishing.
  • 2023 - Survey-Population: A comprehensive survey was conducted using electrofishing, baited hoop nets, and fyke nets.
  • 2022 - Survey-Population: A standard trend fish population survey was conducted using electrofishing and fyke nets.
  • 2022 - Vegetation-Treatment: American Lotus was treated in July with glyphosate
  • 2022 - Vegetation-Treatment: Sago pondweed was treated with Tribune around the docks in front of the cabin area in July
  • 2021 - Survey-Population: A standard trend fish population survey was conducted using electrofishing and fyke nets.
  • 2021 - Vegetation-Treatment: American Lotus treatment utilizing systemic herbicide described in management plan.
  • 2021 - Vegetation-Treatment: American Lotus was treated in August with glyphosate
  • 2020 - Survey-Population: A standard trend fish population survey was conducted using electrofishing and fyke nets.
  • 2019 - Survey-Population: A standard trend fish population survey was conducted using electrofishing and fyke nets.
  • 2017 - Survey-Population: A standard fish population survey was conducted using electrofishing and fyke nets.
  • 2016 - Survey-Population: A standard sample was done with electrofishing and fyke netting.
  • 2015 - Fish Cleaning Station-Fish Cleaning Station: Floating Fish Cleaning Station
  • 2015 - Fish Cleaning Station-Fish Cleaning Station: Fish Cleaning Station
  • 2015 - Survey-Population: A fishery trend survey was done with day and night electrofishing and fyke netting gears.
  • 2014 - Survey-Population: A fishery trend survey was done with electrofishing and fyke netting gears.
  • 2013 - Survey-Population: A fishery trend survey was done with electrofishing and fyke netting gears.
  • 2012 - Survey-Population: A fishery comprehensive was done with electrofishing, fyke netting, and hoop netting gears.
  • 2011 - Survey-Population: A standard sample was done on Green Valley with electrofishing and trapnetting gears.
  • 2010 - Survey-Population: A standard sample was done on Green Valley with electrofishing and trapnetting gears.
  • 2009 - Jetty-Maintenance: Repairs to fishing jetties
  • 2009 - Survey-Population: Green Valley was sampled with gillnets, spring electrofishing, and fall trapnets.

Motoring Restrictions

Motoring Restrictions: No motor restriction at no wake speed except for ski area

Contacts for this Location

Fishing Regulations

The summaries listed below are a partial listing provided for your benefit. Familiarize yourself with the complete Fishing Regulations here: Iowa DNR Fishing Regulations and Laws.

Aquatic Invasive Species

  • Curlyleaf Pondweed

To learn more about AIS, visit the Iowa DNR's Aquatic Invasive Species page for more information and resources.

Fish Surveys

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