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Blue Pit

General Information

County: Cerro Gordo
Location: southwest edge of Mason City
Acres: 15.00
Maximum Depth: 34 ft. (1992)
Motoring Restrictions: Electric Motors Only

Nearby Parks

Clear Lake State Park


Amenities at Blue Pit include:
  • Boat Access
  • Accessible Pier
  • Beach
  • Trails
  • Accessible Facilities
  • Good/Excellent Shorefishing
  • Gravel Boat Ramp
  • Community Fishing Location
No recent updates

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

  • Winter 2021 - 4,048 Rainbow Trout (12)
  • Winter 2020 - 4,530 Rainbow Trout (12)
  • winter 2019 - 4,516 Rainbow Trout (10.8)
  • winter 2018 - 4,526 Rainbow Trout (2-3/lb)
  • annual 2017 - 4,021 Rainbow Trout (2-3/lb)
  • Jan 2016 - 1,250 Brook Trout (2-3/lb)
  • Jan 2016 - 3,000 Rainbow Trout (2-3/lb)
  • annual 2015 - 4,000 Rainbow Trout (2-3/lb)
  • annual 2014 - 4,127 Rainbow Trout (2-3/lb)
  • Winter 2013 - 4,000 Rainbow Trout (2-3/lb)
  • Curlyleaf Pondweed
  • Eurasian Watermilfoil
  • Zebra Mussel
The Fishing Regulations brochure is available for download. The summaries listed below are a partial listing provided for your benefit.

  • Bluegill
    • Season: Continuous
    • Daily Bag Limit: 25 fish
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: No daily limit on private waters
  • Largemouth Bass
    • Season: Continuous
    • Daily Bag Limit: combined black bass, 3 fish
    • Possession Limit: combined black bass, 6 fish
    • Length Limit: 15-inch minimum
    • Other:
  • Rainbow Trout
    • Season: Continuous
    • Daily Bag Limit: combined trout (brook, brown, and rainbow) - 5 fish
    • Possession Limit: combined trout (brook, brown, and rainbow) - 10 fish
    • Length Limit: none
    • Other: Anglers must have paid the Trout Fee to fish for or possess trout
Blue Pit is stocked with trout twice per season. Once in November and once in January. Trout can be caught all winter and into the Spring.(2022)
Tip: Click the arrow in the lower right corner to view the Fish Survey Data tool in full-screen mode.


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.