Catholic Diocese-Great Falls Claim Listing Return to Directory Rating (average) (0) Business Genre Church Business Website Address dioceseofgfb.org Business Address, City PO Box 1399, Great Falls ZIP Code 59403 Business Phone Number 4067276683 Business Fax 4064543480 Ratings There are no reviews yet. Please login to leave a review. Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?