WAUSAU, Wis. (WSAW) -- Friday at noon Marathon County will open Zone 1 and 2 of its snowmobile trail system. The area was blanketed with heavy snow Thursday.
Saturday at 8 a.m., Zone 3 and 4 will open.
Zone 5 will open at 8 a.m. on Sunday.
Click here to view a map of the trail zones.