We, Montana! Great Room Location Here’s our address, with lots of directions below. 5050 Jellison RoadUnit 7 CBillings, MT 59101 Our Great Room is a modest warehouse space, practically remodeled to suit our needs. Chorus Rehearsal in the Great Room Click image to go to Google Maps Click this image to go to Google Maps. See below to find the exact unit. We’re in Building 7, Unit C Here’s our front door and garage door. Here’s the sign that’s currently stuck to the garage door.