Minnow traps

[EatSleepFish]

is it only illegal to trap minnows/crayfish in designated trout streams or any stream that has trout in them? and how would you know if a stream is a designated one?

[MuskyBug85]

only designated trout waters

[DEADhead]

Taking minnows or leeches from designated trout waters, except under special permit, is prohibited. Possessing live minnows, not including leeches, or using them for bait on designated stream trout lakes is prohibited.

Crayfish:

From April 1-Nov. 30 licensed anglers and children under 16 may take and possess up to 25 pounds of crayfish longer than 1 inch for personal use. A DNR permit is required to import, transport or sell crayfish. Crayfish may be used as bait only in the body of water where they were captured. The use of live crayfish as bait on the St. Croix National Scenic Riverway (north of the Boomsite Boat Launch) and within Voyagers National Park, units of the National Park System, is prohibited.

Here is a link listing every trout stream and lake in the state according to MN Statute.

Hope that helps!