Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Visit the hotel Greystone Inn, which is in the state Montana (MT), city Great Falls. Our hotel can be found at 621 Central Ave, Great Falls, MT 59401-3123. Great deals on best and cheap hotels. Your comments* (not for publishing) * — Required information Greystone Inn/621 Central Ave - Great Falls - Montana (MT) ← View details 621 Central Ave, Great Falls, MT 59401-3123, Great Falls, Montana (MT) Not available