Martens Lake

General Information

County: Bremer
Location: 1 mi E of Tripoli
Acres: 255.00
Maximum Depth:
Motoring Restrictions: No Size Limit at No Wake

Nearby Parks

Amenities

Amenities at Martens Lake include:
  • Boat Access
  • Hard Surface Boat Ramp
There have been good reports on the interior rivers of anglers catching walleye, smallmouth bass and northern pike. The forecast is calling for rain next couple of days so may want to check river levels for the upcoming weekend. Trout streams remain in excellent condition, for further information contact the N.E. District Office at 563-927-3276.
Anglers have been catching a few crappie in the canal at Sweet Marsh.
Black Crappie - Fair: Try casting and retrieving various colored tube jigs or floating a crappie minnow under a slip bobber for some crappie action.
White Crappie - Fair: Try casting and retrieving various colored tube jigs or floating a crappie minnow under a slip bobber for some crappie action.
Download Printable Lake Map
Download Printable Fishing Structures Map

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

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

  • Black Bullhead
    • Season: Continuous
    • Daily Bag Limit: unlimited
    • Possession Limit: unlimited
    • Length Limit: none
    • Other:
  • 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
  • Common Carp
    • Season: Continuous
    • Daily Bag Limit: none
    • Possession Limit: unlimited
    • Length Limit: none
    • Other: May be taken by hand fishing, by snagging, by spear or by bow and arrow, day or night.
  • 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:
  • Northern Pike
    • Season: Continuous
    • Daily Bag Limit: 3 fish
    • Possession Limit: 6 fish
    • Length Limit: none
    • Other:
  • White 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
Martens Lake in Sweet Marsh is a consistent producer of quality-sized largemouth bass and provides good opportunities for bluegill and crappie. Martens Lake has abundant vegetation during summer months so many anglers prefer fishing for panfish during winter and early spring.(2015)

Contacts

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.