
(Photo: Dean Johnson)
In a fast-changing world, the permanence of our favorite hiking trails is comforting. Apart from the occasional closure, reroute, or bump in crowds, most of us could go back and hike the same miles again and again, and enjoy the enduring views. But decades from now, will that still be true?
With the help of the National Park Service’s historical photo archive, we’ve collected nine photos of popular American trails taken between 1930 and 1996. You’ve probably heard of most, if not all, of these well-visited spots. See if you can recognize what they looked like back in the day; you’ll want to pay attention to geological formations, the skyline, and the few clues we’ve offered you. Scroll to the end for the answers.

This trail is a household name in the US and around the world, with more than 10,000 people having finished it. But it wasn’t always that way, especially in the decades before the hike enjoyed the amenities it does now.

This burly hike is the most straightforward way up one of the National Parks’ most iconic peaks, but that doesn’t mean it’s easy. Hikers who brave it still need to keep an eye on the weather and watch out for snow that could send them tumbling down a steep drop.

Want to hike this popular trek in the desert southwest? Hope you’re ready to get wet. Whether you do it as a dayhike or an overnight, you’ll spend miles wading up a river and marveling at the geological scenery.

This might as well be America’s national hike. In the 100 years since construction began on it, it’s drawn millions of day-, section-, and thru-hikers, and has become a byword for finding yourself.

As you might guess from the retro-casual apparel, this hike is more of a stroll than a true wilderness experience. But the wildlife—which is bigger and toothier than most national parks’—is enough to capture your attention.

It’s still possible to traverse this iconic, steep trail by mule. But today most visitors who brave it carry their own gear, with a few hardy souls attempting to run it.

Look hard at this black-and-white snapshot, and it may begin to look familiar: Some of the most famous scenery in one of America’s most beloved national parks is visible in this mid-trail picture.

You’ll need a permit nowadays to hike this famous high-country trail, which crosses through three different national parks over its span.

All right, so it’s not technically a hike. But this ultra-classic (and ultra-ultra-popular) lookout is accessible by a number of different trails. (Start early, and carpool if you can.)

Lead Image: A snowy scene high on the Pacific Crest Trail