Snowmobile trails can now officially open for the winter season, the Erie County Federation of Snowmobile Clubs reported this week, if the ground is frozen and there is at least 6 inches of snow.

The 10 clubs in Erie County organize and maintain more than 400 miles of trails. Club officials remind riders to make sure their machines are in top operating condition and to observe the maximum speed limit of 55 mph on the trails, unless a lower speed is posted.

Children ages 10 to 17 must take a course in order to ride their own machines. For information on courses, visit