Originally Posted by minibronco
1) Rocky Mountain National Park
From Denver, take the SR 36 all the way through Boulder into Estes Park. In Estes Park, load up on supplies before you head through the official main gate ($20) of the Rocky Mountain National Park. First road on the left after the main gate is Bear Lake Road. Follow this road until the end, and stop to take pictures or enjoy the view where there is a opening on the side of the road or a sign for a landmark (lakes). At the end of the road, you will see the beautiful Bear Lake. From Denver to Estes Park is 2 hours. Trip inside the park is 45 minutes.
I recommend the Grand Lake side, since the road will probably be closed near the top. I have a lot more luck seeing wildlife on that side. Lots of moose and elk, etc.