Among the waters in Waupaca County, Hartman Lake 3 is listed as a reservoir with the available water data listing about 24 acres and a maximum depth of 8 feet, which gives you a much better starting point than trying to read too much into a satellite view.
A plain-English look at the water
| County | Waupaca County, WI |
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| Water type | Reservoir |
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| Surface area | 24 acres |
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| Maximum depth | 8 feet |
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| Recorded fish | 0 |
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My first day here would stay uncomplicated by putting the first hour into the best bank cover, any obvious weeds, and the deepest water I can reach because the easiest way to waste a day is to keep moving without learning anything.
What the fish list tells you
Right now, Hartman Lake 3 does not have a dependable exact-water fish list in the inventory; until the exact-water record improves, i would keep the trip general instead of pretending one target is guaranteed, and while still keeping the first trip pretty relaxed.
Where I would start
If I had never seen Hartman Lake 3 before, I would keep the first hour organized enough that a bite actually teaches me something, then I would verify any special water rules before deciding what can go in the cooler.
Nearby fishing waters
Explore nearby waters, including local Featured destinations. Check each page for access and fishing restrictions.
Distances are straight-line estimates between mapped water locations.