Hi there. You are at the base of the mountain and there are trails on the mountain. There is a free shuttle to town and we did not use our car while we stayed at the lodge.
I do not know the cost of transportation from the aspen airport.
Have a good trip!
I have never stayed there in the summer. My son and I rode across the mountains from Denver on motorcycles and stayed at the Grand Lodge. It's usually quite comfortable as far as temperature goes but it was hot while we were there and the Grand Lodge has no air conditioning, I would check on that. Also, many of the better restaurants are closed during summer. Make sure and go during wild flower peak season. Not crowded and beautiful scenery. Just call the Lodge at Mountaineer square about air if that even concerns you. I would say yes myself it's a great place.