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Three Mile Lake

General Information

County: Union
Location: 3 miles northwest of Afton
Acres: 880.00
Maximum Depth: 56.3 ft. (2007 - Data collected as part of the statewide lake mapping program.)
Motoring Restrictions: none


Amenities at Three Mile 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 have increased and 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.
Three Mile Lake access is good.
Crappie - Slow: Crappies up to 9 inches have been caught on small jigs near timber structure and drift fishing the open water.
Largemouth Bass - Slow: Largemouth bass up to 15 inches have been caught on crankbaits and plastics near jetties and in the flooded timber.

Fishing Forecast

Musky catches were the low again this year at Three Mile. Wiper catches were moderate with most 18 to 22 inches in length. Walleye were sampled in low abundance and of all sizes. Bluegill were sampled in low abundance and none exceeded 8 inches. Crappie were also in moderate abundance with most sampled 8 to 10 inches in length. Yellow bass were sampled in very high abundance with most below 8 inches in length.(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.