Unfortunately by the time we visited (October 10) and drove all the way to the top, we found that the Visitors Center was CLOSED for the season. Very disappointing but totally understandable, given the huge snowfalls (there was snow at this altitude already) and the very unnerving drive. This drive once you start climbing to the higher elevations, and certainly above 9,000 - 10,000 feet, is on a narrow but well maintained road, with no guardrails and precipitous drops! As one Park Ranger told me later - not for the faint of heart! However, this is the highest Visitors Center in the US National Park system and the alpine views above the tree lines and just below the clouds are incredible! Be aware that, as in our case, at the lower parts of the park (around 7-8,000 feet in elevation) the temperature was 58F while at the top of the mountains at the Visitor Center it was light rain and 39F. Do not take lightly the precautions of rapid and significant weather changes. But absolutely glad we did the drive once.