The Rocky Mountain States
The diverse and intriguing states of Colorado, Idaho, Montana, North Dakota, South Dakota, and Wyoming together form the Rocky Mountain States. This region is bound together by its awe-inspiring scenery: majestic mountains, mountains, colourful dark skies, shimmering lakes, expansive prairies, and tumbling waterfalls. It boasts a concentration of some of the most incredible national parks in the USA, as well as year-round adventure from skiing to horse riding.
At a glance
- Includes Colorado, Idaho, Montana, North Dakota, South Dakota, and Wyoming
- Dozens of national parks and monuments including Yellowstone, Mount Rushmore, Mesa Verde, Badlands & more
- Fantastic mountain, prairie, lake and forest scenery
Best time to visit the Rocky Mountain States
The best time to visit the Rocky Mountain States depends on what you want to experience and which specific destinations you're interested in.
June and September are generally considered the best times to visit due to the cooler, clear days, and there being fewer visitors to the national parks.
In the height of summer, July and August, you can take advantage of the longer days and for certain national parks, such as Yellowstone, this is the best time to visit for wildlife viewing. However it is important to note that the parks are likely to be crowded, prices can be higher and there is the potential for extreme heat.
Winter is great for skiing or snow boarding but you only want to visit the parks if you're going on a winter guided tour of Yellowstone or Grand Teton National Parks. Generally speaking the season in the Rocky Mountain States is May to September.
Contact our travel experts to start planning your holiday to the Great American West
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Recommended holidays
Explore a collection of our handpicked holidays to the Great American West below

Mount Rushmore, Yellowstone & Cowboy Country
Tick off many of your bucket list wishes on this fly-drive taking in the incredible attractions of Mount Rushmore and Yellowstone and Grand Teton National Parks.
13 Nights From
£2,025
ppOverview
Tick off many of your bucket list wishes on this fly-drive taking in the incredible attractions of Mount Rushmore and Yellowstone and Grand Teton National Parks.
What’s included?
- International flights departing from the UK in economy class.
- Accommodation for 13 nights
- 12 days intermediate car hire with fully inclusive insurance, unlimited mileage and taxes

Culture, Heritage & National Parks of North & South Dakota
Packed full of highlights this fly-drive visits the incredible Badlands and Theodore Roosevelt National Parks, jaw-dropping Mount Rushmore and the unique and interesting towns and cities that surround them.
13 Nights From
£2,388
ppOverview
Packed full of highlights this fly-drive visits the incredible Badlands and Theodore Roosevelt National Parks, jaw-dropping Mount Rushmore and the unique and interesting towns and cities that surround them.
What’s included?
- International flights from the UK based on economy class
- Accommodation for 13 nights
- 14 days compact car hire with fully inclusive insurance, unlimited mileage and taxes

Mile High City & The Rockies
Starting in the mile high city of Denver, drive through breathtaking mountain scenery, spectacular national parks with an abundance of wildlife, and past stunning monuments.
15 Nights From
£2,557
ppOverview
Starting in the mile high city of Denver, drive through breathtaking mountain scenery, spectacular national parks with an abundance of wildlife, and past stunning monuments.
What’s included?
- International flights from the UK based on economy class
- Accommodation for 15 nights
- 14 days compact car hire with insurance coverage, unlimited mileage and taxes

Rocky Mountain Wonders
This holiday is a road trip through America’s west, a magical region packed with epic vistas and stunning natural beauty.
16 Nights From
£2,923
ppOverview
This holiday is a road trip through America’s west, a magical region packed with epic vistas and stunning natural beauty.
What’s included?
- International flights from the UK based on economy class
- Accommodation for 16 nights
- 14 days compact car hire with insurance coverage, unlimited mileage and taxes

Epic National Parks, Wonders & The Wild West
Jampacked with incredible national parks, monuments, fascinating history and interesting Native American culture, this tour encompasses the very best of the Great American West states of North Dakota, South Dakota, and Wyoming.
16 Nights From
£3,336
ppOverview
Jampacked with incredible national parks, monuments, fascinating history and interesting Native American culture, this tour encompasses the very best of the Great American West states of North Dakota, South Dakota, and Wyoming.
What’s included?
- International flights from the UK based on economy class
- Accommodation for 16 nights
- 14 days compact car hire with insurance coverage, unlimited mileage, and taxes

The Gem State, Yellowstone & Glacier National Parks
Venture into some of the world’s most famous and breathtaking national parks on this memorable fly-drive that travels back in time to look at pioneer and cowboy culture.
16 Nights From
£3,521
ppOverview
Venture into some of the world’s most famous and breathtaking national parks on this memorable fly-drive that travels back in time to look at pioneer and cowboy culture.
What’s included?
- International flights from the UK based on economy class
- Accommodation for 16 nights
- 15 days intermediate car hire with insurance coverage, unlimited mileage and taxes