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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

Most water temperatures in the Mount Ayr District lakes are below 80 degrees. River flows are variable with recent rains. The district includes Page, Taylor, Adams, Union, Ringgold, Decatur, Clarke, and Madison counties. For more information call: 641-464-3108.
Green Valley Lake access is good.
Largemouth Bass - Slow: Largemouth bass up to 17 inches have been caught using crankbaits and plastics along the rock structure and cedar tree piles.
Channel Catfish - Slow: Channel catfish up to 20 inches have been caught with cut bait along the jetties and silt dikes.

Fishing Forecast

Largemouth bass were sampled in high abundance with most bass ranging from 13 to 17 inches. Bluegills were sampled in low to moderate numbers with several exceeding 8 inches. Crappies were sampled in moderate abundance with most ranging from 9 to 10 inches.(2013)

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 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.