The Mount Blue Sky road is seasonal and needs a timed ticket

The drive to the top of Mount Blue Sky is one of the highest paved roads on the continent, and it is not a road you can just show up and drive whenever you like.

The byway climbs from near Idaho Springs past Echo Lake and on toward the summit of Mount Blue Sky, the peak long called Mount Evans. The upper part of the road is open only in the warmer months and closes for winter, because snow and ice make it impassable. Even in summer, weather near the top can be severe.

When it is open, the road uses a timed-entry reservation system. That means you book a window in advance rather than driving up on a whim. Federal park passes that work elsewhere may not cover entry here, so check what is accepted before you go. Echo Lake, near the start, is a Denver Mountain Park and a good lower-elevation stop.

Why care: a long drive ends in disappointment if the gate is closed or you have no reservation. A quick check saves the trip.

For dates, reservations, and what passes are accepted, check the Forest Service and Recreation.gov listings for Mount Blue Sky.