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O'Brien Lake is located in Iron County, Wisconsin. This lake is 76 acres in size. It is approximately 12 feet deep at its deepest point. When fishing, anglers can expect to catch a variety of fish including Bluegill and Largemouth Bass.
- Motor Trolling is allowed with 1 hook, bait, or lure per angler, and 3 hooks, baits, or lures maximum per boat.
** Please note that the restrictions listed above my be revised at any time by the Wisconsin Department of Natural Resources without notice. Be sure to check with your local DNR.
- Banded Mystery Snail
- Chinese Mystery Snail
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