We did a full day tour with Aspire to the Rocky Mountains and Eddie was our guide.
He was very friendly, knowledgeable about the area and a careful driver.
We got to a beautiful sights, deer and elk.
While I do think the price could be lower ($150) , we all did enjoy the tour.
It was nice not having to drive up a mountain and figure out where to go.
They also allowed vegetarian lunch options (sandwiches from Sprouts and chips).
I would recommend this tour at least for a first timer.