Mammoth Room
As the name alludes, the Mammoth Room is the largest room in the building measuring 120 feet by 55 feet for a total of 6600 square feet. The west end of the room features a grandiose fireplace that stands over 15 feet tall. Adjacent to the kitchen, this room is an ideal location for hosting a large group of guests. Three of the four walls in the room feature striking windows spanning nearly the height of the building. Built almost entirely out of local wood and stone, the rustic atmosphere captivates guests of all kinds. The grand fireplace can be used and is the only source of heat in the Mammoth Room.
Maximum capacity of the Mammoth Room is 400 people.
Firehole Room
The Firehole Room is the smaller of the two rooms measuring 30 feet by 55 feet for a total of 1650 square feet. The east end of the room features a smaller fireplace. Across the room is a historic bar recently renovated to cater to the needs of the renter. The bar area includes access from both the Firehole Room and Mammoth Room, a double sink, and a wine/beverage cooler. The room includes single stall restrooms, also recently renovated. Doors on the north and south of the room allow plenty of options for entrance to the building. The Firehole Room is ideal for a smaller event or cocktail hour. Similar to the Mammoth Room, the rustic style features wood and stone from around the West Yellowstone area. The fireplace can be used and is the only source of heat in the Firehole Room.
Maximum capacity of the Firehole Room is 100 people.
Wedding Suite
Renovated in 2016, the Wedding Suite offers a quaint location to get ready for any event. The room includes a heater, couch, chairs, a dressing screen, a full-length mirror, and smaller cosmetic mirrors.
Kitchen
Since the Dining Lodge originally served as a facility to feed visitors coming to Yellowstone National Park on the train, the building houses an industrial sized kitchen. Available to the renter are the following appliances:
2 Industrial Refrigerators
1 Industrial Freezer
3 Industrial Gas Grills and Ovens
1 Bun Toaster
1 Dish Sanitzer
1 Ice Maker (800 lb capacity)
Preparation counters
In the kitchen, we also have the following items available (inclusive with rental):
| Glasses | Number |
| Small Water Glasses | 344 |
| Water Goblets | 225 |
| Wine Glasses | 311 |
| Pony Glasses | 32 |
| Mugs | 823 |
| Utencils | Number |
| Forks | 300+ |
| Spoons | 300+ |
| Butter Knives | 300+ |
| Dinner Plates | 300+ |
| Saucers | 300+ |
Available with rental of the Dining Lodge are the following tables and chairs:
| Tables & Chairs | Number |
| Large Caberet (36" diameter) | 5 |
| Small Caberet (30" diameter) | 5 |
| 6' Round | 8 |
| 5' Round | 48 |
| 8' Rectangle | 21 |
| 6' Rectangle | 11 |
| 6' Rectangle - Adjustable Height | 5 |
| Serpentine | 4 |
| White Folding Contour Chair | 380 |