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I-70 is beautiful, or there are more northerly routes. There are natural hot springs some places in the mountains. Rocky Mountain national park is not to be missed if you think it will be a while before you'll be back. There are elk and big horned sheep. Be careful of bears, and altitude sickness. The air gets so thin that trees refuse to grow above treeline. Make sure the roads are open in case of an early snow.

Wow! Thanks so much for the great info :)

For sure. Enjoy your trip. Let Steemit know how it goes.