Hawthorn Lake

General Information

County: Mahaska
Location: 1 mile south of Barnes City
Acres: 182.00
Maximum Depth: 28 ft. (2007)
Motoring Restrictions: No Size Limit at No Wake

Nearby Parks

Amenities

Amenities at Hawthorn Lake include:
  • Boat Access
  • Fishing Jetty
  • Trails
  • Hard Surface Boat Ramp
No recent updates
Download Printable Lake Map
Download Printable Fishing Structures Map

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

  • 4/28/16 - 200 Muskellunge (10")
  • 09/24/2015 - 1,499 Channel Catfish (8")
  • 05/08/2015 - 200 Muskellunge (12.3")
  • 05/13/2014 - 198 Muskellunge (9.6")
  • 10/29/2013 - 40,600 Redear Sunfish (2.0")
  • 09/25/2013 - 1,937 Channel Catfish (8.0")
  • 07/09/2013 - 5,184 Largemouth Bass (1.5")
  • 05/29/2013 - 1,923 Channel Catfish (5.1")
  • 10/11/2012 - 35,000 Black Crappie (2.0")
  • 06/19/2012 - 17,700 Largemouth Bass (1.3")
  • 06/06/2012 - 150 Redear Sunfish (Adults)
  • 05/07/2012 - 151 Muskellunge (12.6")
  • 06/20/2011 - 17,700 Largemouth Bass (1.3")
  • 05/18/2011 - 1,770 Channel Catfish (2.0")
  • 03/29/2011 - 70,000 Bluegill (1.3")
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: All 12 to16-inch fish must be immediately released
    • Other:
  • Muskellunge
    • Season: Continuous
    • Daily Bag Limit: combined: muskellunge and tiger muskellunge, 1 fish
    • Possession Limit: combined: muskellunge and tiger muskellunge, 1 fish
    • Length Limit: 40-inch minimum
    • Other:
Hawthorn Largemouth bass density remains high and size structure is good. The abundance of fish 18 inches and less is very high. Larger, trophy-sized fish are present. Bluegill quality is developing slowly. Most fish are less than 8 inches in length. This should improve in upcoming years. Crappie are moderately abundant with most fish less than 10 inches in length; however, larger fish are available. Channel catfish are abundant and fish up to 5 lbs are common.(2017)

Contacts

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.