I've visited 45 of the 51 national parks in the contiguous United States, which is 88% of the way to my goal of seeing them all. The six still on the list: Acadia, Biscayne, Cuyahoga Valley, Dry Tortugas, Everglades, and Indiana Dunes.

On the map below, green dots are parks I've been to and the bigger the dot, the more visits. Grand Canyon, my favorite, is the biggest of all. Red rings are the ones I haven't reached yet. Click any dot for details, and click a year to jump to that trip.

The full list is below. For almost all of these it's June and sometimes May; if it's some other month (or the date is approximate), the month is in brackets. Years link to the trip pages.