Have you visited Hawai'i National Park and gotten close to the Kīlauea Volcano, enjoyed Paradise at Mount Rainier National Park, climbed to the top of Lassen Peak in its namesake park, or hiked down to Crater Lake? If so, you've placed yourself in the midst of some of the country's most dangerous volcanoes in terms of the threats they pose, according to the U.S. Geological Survey.

Since 1966, national scenic and historic trails have been an American priority. They traverse mountains, canyons, forests, and grasslands across the country, crossing creeks and rivers and skirting lakes. These narrow corridors through the wilderness provide recreation and protect historic resources while conserving natural features. There are many physical, emotional, and logistical requirements for these trips, and winter is the perfect season to get in shape and plan for a long walk. Here’s a quick look at a few of these trails to help you plan a trip.

One of the true overlooked gems of the National Park System is Lassen Volcanic National Park in California. Crowds are few, the landscape is amazing, and the camping wonderful. And experiencing that landscape just might get a tad bit more expensive under a proposal now open for public comment.

Recent storms have brought wintry conditions to Lassen Volcanic National Park in northern California, closing the park road to through traffic but opening activities for snow enthusiasts. And as of last month, the park has two new interactive exhibits for kids to enjoy after a day of sledding.