You must book in-advance to get an overnight parking spot at the Maroon Lake trailhead. There are a limited number of reservations available and usually are all booked by the start of summer. Please visit this page
for more information. Summer parking will likely be booked fast so you'll probably have to park in town and ride the shuttle up the night before your hike. Full Link: https://aspenchamber.org/plan-trip/trip-highlights/maroon-bells/reservations
If you can't get a reservation, you can still park in town and make a shuttle reservation for your hike-in day and another for your hike-out day. They also allow cars to go up the road and drop people off at the lake between 6 and 8am.
0 (0=Paved, 6=Very Difficult 4WD)
2WD paved to the TH.
Drive to Aspen and locate the start of to the Maroon Creek road at a roundabout just west of town. Measuring mileage from there, drive 3.2 miles where you'll pass a ranch. At 4.7 miles, reach the U.S. Forest Service entrance station. During summer, the road is closed to cars 8am to 5pm and people ride buses to reach the lake. The bus station is located down the road, at the base of Aspen Highlands. If you don't have a reservation to park at the actual trailhead, you'll either 1) Need to reserve a return shuttle ride back to town on the day you hike out and have someone drop you off at the trailhead between 6:00am and 8:00am on your hike-in day or 2) Park in town and make reservations for a shuttle up on your hike-in day and a shuttle down on your hike-out day.
Closed at the ranch, many miles below the TH, but the road is usually packed down by snowmobiles.
Parking: It's a pain.
Camping: No camping at the trailhead and reservations for the campgrounds down the road fill up early in the season. Most hikers get to the trailhead and pack into the backcountry to camp.
Trailhead added by BillMiddlebrook