Grand Union Hotel Wedding Photographer | Mattingly Wedding March 04, 2017 in Wedding Photography Mattingly in love... The beautiful and amazing Grand Union Hotel located in Fort Benton, Montana. The bride and her bridesmaids shared mimosas and got ready in these amazing floral bathrobes. Fort Benton has the most amazing scenery to capture bride and groom photos. I was in love with the fur coat Carolyn wore to compliment her wedding dress. Matthew and Carolyn took a quick dip kiss before the wedding in near the Grand Union hotel. We had an amazing time taking family and bridal party photos on the bridge in Fort Benton, Montana.