CHEYENNE, Wyo. (AP) — The Wyoming Game and Fish Department is urging ice fishermen to stay safe this winter.

Game and Fish says it's a good idea to check conditions before venturing out onto a lake that has frozen over. Check the thickness of the ice every 100 to 150 feet.

Four inches of clear ice usually is considered enough for safe fishing.

Game and Fish says don't go onto rivers or other moving water that has frozen over. In any case, always make sure somebody else is with you.

In case you fall in, wear a life jacket and carry a flotation device on a rope that can easily be thrown. Also, carry an ice pick on a lanyard to help you crawl out in case you fall through.