Here is our full Classic USA packing list. You’ll notice there are a few asterisks (*) alongside some of the items. This is because these things are mandatory. We have a list of mandatory items because, for safety reasons, it’s vital you have your own gear. But, mandatory equipment may be shared with your fellow trekkers if you’re trekking in a group.
September in Colorado can be warm during the day and could be below freezing temperatures at night. Keep this in mind and pack layers for varying conditions.
Required to pack