When you’re looking up the trail description for your next hike, you will probably notice that in addition to details like trip length and elevation gain, the hike has been assigned a difficulty such as class 1 or 2 which may have left you scratching your head and wondering what, exactly, to expect. Here we take a look at the hiking trail difficulty rating system to help you understand your trail descriptions and make informed decisions about where to hike next.
As with rock climbing, different hiking trails are assigned different levels or grades to help classify their difficulty. Different countries use different systems, and the US and Canada have been using the Yosemite Decimal System since the 1950s. It was devised by the Sierra Club and comprises three parts that rate the difficulty level of walks, hikes and climbs.
The five ‘classes’ in the Yosemite Decimal System are used to rate both hikes and climbs with Class 1 being easiest and Class 5 being most difficult. Class 5 routes are all rock climbing routes, and these have been further subdivided into 14 smaller classifications, so for our purposes here, we’ll just look at the first four classes since these cover hiking trails. These are helpful for you to gauge the difficulty level of the trail you plan to attempt, in addition to understanding what kind of clothing, and gear, is required for a safe and successful hike.
These hikes will deliver easy, straightforward hiking, usually on a well-maintained and well-marked trail. You will gain elevation, but you won’t require technical equipment to do it. These are accessible for all levels and abilities of hiker, but of course you’ll want a good pair of hiking shoes.
These hikes will not be as clearly marked. They will be a little more challenging and may take you off trail. You may have to use your hands occasionally for balance and you might encounter snow or talus. Class 2 hiking may have exposure, loose rock and steep scree. You’ll definitely want good hiking shoes or boots and a map in case you lose the trail, and you may want trekking poles too.
Class 3 hikes will involve some scrambling, or unroped climbing. Expect to use your hands and feet at points on these trails as you navigate steep, rocky or snowy terrain. You’ll want confidence, navigation skills and you may even carry a rope for safety here.
The most difficult hiking trails will involve steep and dangerous terrain and require upwards and downwards climbing using your hands and feet. You should carry a rope in case you need it because falls can be fatal here. You will probably need ropes, a harness and a helmet here. Anything more difficult than these trails is considered climbing, not hiking.
And there you have it. Next time you’re planning a hike, check the class and plan ahead so you can feel confident and prepared on the trail.
Julia Clarke is a staff writer for Adventure.com and the author of the book Restorative Yoga for Beginners. She loves to explore mountains on foot, bike, skis and belay and then recover on the the yoga mat. Julia graduated with a degree in journalism in 2004 and spent eight years working as a radio presenter in Kansas City, Vermont, Boston and New York City before discovering the joys of the Rocky Mountains. She then detoured west to Colorado and enjoyed 11 years teaching yoga in Vail before returning to her hometown of Glasgow, Scotland in 2020 to focus on family and writing.
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