The Little Green River is located about 15 miles northwest of Fennimore and is a Class I trout stream. While most of the stream is privately owned, the DNR maintains a public fishing area along State Highway 133 near the Mt. Hope Conservation Area. Anglers can keep three trout a day and brown and rainbow trout must be under 14 inches or over 18 inches and brook trout must be under 10 inches or over 14 in order to be kept. Permission from adjacent landowners is needed to fish most portions of the stream. Millville Creek has a variety of fishing opportunities with pastured banks as well as wooded sections of the stream.
Some natural reproduction occurs in the stream and it receives very little pressure.
The DNR has easements from the confluence with the Wisconsin River upstream about 3 miles. More information about trout regulations can be found in the Wisconsin Trout Regulation Pamphlet available wherever fishing licenses are sold. Anglers are asked to respect the landowners property by not tearing down fences or littering. Some parking areas are available, however most parking is done along the roadways. Please do not block driveways or field access roads.