Minn. Stat. § 97C.321: RESTRICTIONS ON UNATTENDED LINES.

Subdivision 1. General prohibition.

A person may not take fish by angling with a set line or an unattended line except as provided in this section and rules adopted under the game and fish laws.

Subd. 2. Ice fishing.

A person may use an unattended line to take fish through the ice if:

(1) the person is within sight of the line; or

(2) a tip-up is attached to the line and the person is within 200 feet of the tip-up.