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Lake Onalaska is a 8391 acre lake located in La Crosse County. It has a maximum depth of 40 feet. Visitors have access to the lake from public boat landings. Fish include Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike and Walleye.
NOTE: This list may not be all inclusive of all speices present in Lake Onalaska.
- Curly-Leaf Pondweed
- Eurasian Water-Milfoil
- Faucet Snail
- Hybrid Eurasian / Northern Water-Milfoil
- Purple Loosestrife
- Water Hyacinth
- Water Lettuce
- Yellow Iris
Recreational activities such as recreational boating, angling, waterfowl hunting, and diving may spread aquatic invasive species. Some aquatic invasive species can attach to boats, while others can become tangled on propellers, anchor lines, or boat trailers. Many species can survive in bilge water, ballast tanks, and motors or may hide in dirt or sand that clings to nets, buckets, anchors, and waders. Fortunately, completing simple steps can prevent the transport of aquatic invasive species.
NOTICE: Lake-Link Inc assumes no responsibility or liability for any errors or omissions of the information for Lake Onalaska. Although we strive to provide the most accurate information as we can the information contained in this page is provided on an "as is" basis with no guarantees of completeness, accuracy, usefulness or timeliness.