Mammoth Hot Springs Hotel Meeting Rooms & Events Meeting Capacity: 1 meeting rooms holding 30 people Mammoth Hot Springs Hotel Business Services Business Center 2 Mammoth Hotel AveYellowstone Natl Park, WY 82190View Large Map Phone: +1 307-344-7311Fax: +1 307-344-7456Toll Free: +866-439-7375 Hotel E-mailHotel Website Classification 2 Tourist Class Commission Rooms Rates - 211 $197-$459 (USD) Hoteliers! Is your information accurate? Update Here