Montana One Call Center

1-800-551-UDIG (8344) or 406-755-UDIG or 811 [email protected]

Legal Holidays

If the legal holiday falls on a Saturday or Sunday, the preceding Friday or following Monday will be excluded.

New Year’s Day
January 1
Memorial Day
Last Monday in May
Independence Day
July 4
Labor Day
First Monday in September
Thanksgiving Day
Fourth Thursday in November
Christmas Day
December 25