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Green Valley Lake

General Information

County: Union
Location: 2 1/2 miles northwest of Creston
Acres: 338.00
Maximum Depth: 23.4 ft. (2006 - Data collected as part of the statewide lake mapping program.)
Motoring Restrictions: No motor restriction at no wake speed except for ski area


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

Fishing Report

Water temperature in most Mount Ayr District lakes is approximately 65 degrees. The district includes Page, Taylor, Adams, Union, Ringgold, Decatur, Clarke and Madison counties. For more information call: 641-464-3108.
Bluegill - Good: Bluegill up to 8 inches have been caught using nightcrawlers fished near the fishing jetties.

Fishing Forecast

Largemouth bass were sampled in high abundance with most bass ranging from 13 to 17 inches. Bluegills were sampled in moderate abundance with most between 6.5 and 8 inches. Crappies were sampled in low abundance with some exceeding 11 inches. Walleyes were sampled in low to moderate abundance with most sampled walleyes between 12 and 15 inches with a few exceeding 19 inches.(2014)

Lake Maps

Download Printable Lake Map
Download Printable Fishing Structures Map

You can zoom in on the map for bathymetric information for some lakes

Popular Fish Species at this Lake

Fish Stocking

  • 09/19/2013 - 1,895 Channel Catfish (8.5")
  • 08/29/2011 - 2,940 Channel Catfish (9.2")
  • 06/29/2011 - 38,000 Largemouth Bass (1.5")
  • 06/24/2010 - 9,125 Largemouth Bass (1.6")
  • 06/18/2009 - 9,125 Largemouth Bass (1.1")
  • 05/28/2009 - 8,288 Channel Catfish (3.9")
  • 10/21/2008 - 34,000 Bluegill (1.5")
  • 10/17/2008 - 8,500 Largemouth Bass (4.0")
  • 09/25/2008 - 4,000 Channel Catfish (8.0")


The Fishing Regulations brochure is available for download. The summaries listed below are a partial listing provided for your benefit.

  • Black Crappie
    • Season: Continuous
    • Daily Bag Limit: combined black and white crappie, 25 fish
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: No daily limit on private waters
  • Bluegill
    • Season: Continuous
    • Daily Bag Limit: 25 fish
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: No daily limit on private waters
  • Channel Catfish
    • Season: Continuous
    • Daily Bag Limit: combined: channel, blue and flathead catfish, 8 fish
    • Possession Limit: combined: channel, blue and flathead catfish, 30 fish
    • Length Limit: none
    • Other:
  • Largemouth Bass
    • Season: Continuous
    • Daily Bag Limit: combined black bass, 3 fish
    • Possession Limit: combined black bass, 6 fish
    • Length Limit: 18-inch minimum
    • Other:

Fish Surveys

Lake Fish Survey Data Data from the most recent fisheries survey of this lake is provided on this external web site. This data may include information from various netting surveys and/or electroshocking surveys. Data includes numbers of fish sampled, and fish size ranges. Not all lakes are sampled every year.

Lake Mini-report

Lake Reports Summary report information about selected (~130) lakes regarding water quality, upstream land use, usage, economic value and more. Reports are customizable by the user to include only that information which the user desires to include.

Water Quality

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

The vast majority of Iowa’s streams, rivers and lakes offer safe and high-quality fish that pose little or no threat to human health if consumed. Some limitations may apply for young children and pregnant women. Here’s a Fish Consumption Fact Sheet from the Iowa DNR and the Iowa Dept. of Public Health for more information. Here is a list of current fish consumption advisories for Iowa lakes and rivers.