Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Visit the hotel Gray House Motel, which is in the state South Dakota (SD), city Gregory. Our hotel can be found at 911 E Hwy 18, Gregory, SD 57533. Great deals on best and cheap hotels. Your comments* (not for publishing) * — Required information Gray House Motel/911 E Hwy 18 - Gregory - South Dakota (SD) ← View details 911 E Hwy 18, Gregory, SD 57533, Gregory, South Dakota (SD) Not available