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Mammoth Hotel Dining Room

The First 4-Star Certified Green Restaurant in the National Parks

Green Restaurant Certified Logo

In August 2011, the Mammoth Hotel Dining Room became certified by the Green Restaurant Association. The GRA is a national non-profit organization that provides a cost-effective way for restaurants to demonstrate their commitment to environmental sustainability. The Mammoth Dining Room is Xanterra’s first certified green restaurant, and with a 4-Star rating (out of a possible 4-Stars), is the FIRST 4-Star certified restaurant in Wyoming and our National Park System, and one of only 25 in the country. To achieve certification, restaurants must address critical areas that include: Energy, Food, Water, Waste, Disposables, Chemicals and Pollution Reduction, and Furnishings and Building Materials. To achieve its 4-Star certification, the Dining Room demonstrated sustainable operations through a major restroom remodel, installation of energy-saving LED lamps and water-saving fixtures, sourcing of local and organic cuisine, recycling and composting restaurant waste, and using environmentally preferable cleaning products.

Please be advised, dining dates, hours, and menu options may be limited and can change with little to no notice. 

Summer Dates

Opens: April 26, 2024 starting with dinner
Closes: October 14, 2024 after breakfast

Hours

Breakfast: 6:30 am – 10:00 am
Lunch: 11:30 am – 2:30 pm
Dinner: April 26 – May 15: 5:00 pm – 9:00 pm / May 16 – October 14: 4:30 pm – 10:00 pm

Menus

Breakfast
Lunch
Dinner & Wine List
Dessert & After Dinner Drinks
Kids

Reservations

First-come, first-served during the summer


Winter Dates

Opens: December 15, 2024
Closes: March 3, 2025

Serving Breakfast, Lunch, and Dinner

Reservations

Reservations are required for dinner in winter only. Advance dinner reservations are available only to overnight in-park lodging and campground guests. Guests with reservations at Mammoth Hot Spring Hotel and Old Faithful Snow Lodge can make reservations up to 60 days prior to arrival. Guests will receive an email communication that includes an exclusive link for access to make dinner reservations online. Non-lodging guests are able to visit the host stand for same-day availability.

First-come, first-served for breakfast and lunch.


Dress Code

Casual

Address

Mammoth Hotel Dining Room, 305A Albright Ave, Yellowstone National Park, WY 82190

  • Dining in Yellowstone