Left Right
Purpose: Used in pairs, hazard markers indicate the trail opening through which a snowmobile operator may pass over a bridge or culvert. The stripes of each sign face inward and show the bridge opening. Used singly, a hazard marker indicates a trail obstruction. The stripes of the sign point down toward the path around the obstruction.
Minimum size: 6 inches by 12 inches
Colors: Alternate black and yellow 45 degree diagonal stripes.
BARRIER MARKERS
Left Right
Purpose: Barrier markers are used in pairs to indicate a barrier or gate that restricts entry to a trail or road for snowmobiling. The stripes of each sign face inward and toward the center of the trail or road.
Minimum size: 6 inches by 12 inches
Color: Alternate red and white 45 degree diagonal stripes.
GUIDE SIGN
Purpose: Directs snowmobile operator to a destination.
Size: Variable - 2 inch Upper case letters
Colors: Brown background with reflective white letters and legend.
INFORMATION SIGNS
Purpose: Furnish information about trails or facilities.
Size: Variable - 2 inch Upper case letters.
Color: Brown background with white letters.
SPECIAL SIGN - CORRIDOR MARKER
Purpose: To indicate that the trail is part of the designated state corridor trail system.
Minimum size: 6 inches by 6 inches
Color: Blue background with reflective white border, shield and letters.
NR 50.09(4)(c)3.c.c. Federal forest service sign specifications may be used on federal forest service lands. NR 50.09(4)(d)1.1. Counties shall be required to groom and maintain snowmobile trails developed on lands receiving aids for acquisition and/or development.