I’m a self-confessed fan of winter hikes. Occasionally, however, I go hiking when it’s actually cold.

To those of you not from the South who think “cold” means 45 degrees to us down here, I have a word for you: A-L-T-I-T-U-D-E. Turns out, no matter how far south you go, if you go up high enough, the weather changes. This is why there are snow-capped mountains in Ecuador and ski resorts in SoCal. Though the Mountains in the Southeast don’t quite compare to those feats of skyscraping, you’d be amazed at what a 2,000 – 3,000′ climb does for your thermometer.

Knowing this full-well, I set out this weekend for one of our near-neighbor peaks—Big Frog (so called because of its supposed resemblance to a sleeping amphibian in profile. Make of this what you will). This week marked the first real cooldown of the winter so far. The morning of the hike, it was 18 degrees (F) at home in Chattanooga. My nose and frozen Camelback valve jointly guess at a temperature of around 5 once I reached the summit (4,224′) in early afternoon. Typically, I shed layers through the day, even as I ascend. This time, I had to put them back on.

This is a small inconvenience in the grand scheme of things. Hiking in the cold has tremendous benefits. First is the obvious joy that is the absence of insects, arachnids, and reptiles. Second, as any frequent traveler in the Southern Appalachians knows, trails around here get very muddy. Set out when the mercury drops, though, and it’s all crisp and crunchy. Third and most impressive, is that—when the conditions are right—the payoff of your effort can be a beauty that defies description (and doesn’t respond too well to efforts to photograph it either).

Rime is something that almost has to be witnessed to be believed. Frost curls are equally impressive, but you don’t have to go hunting for these extrusions solely at altitude.

There is plenty else to catch the senses beyond the weather. There are huge white pines on side slopes, and stout, spring-fed oaks and tulip poplars in north-facing coves. There is a tunnel through an ancient slick of rhododendrons just below the summit that is alone worth the hike. This time of year, there are periodic views through gaps in the trees that extend from the Unicoi Mountains to the northeast all the way to Lookout Mountain and the Cumberland Plateau to the southwest. Best of all, though, is the silence. Big Frog is isolated. It’s got a topographic prominence of 2,480′; it’s in a federally designated wilderness area, nearly 10 miles from the nearest paved road; it’s a tough enough hike to keep crowds to a minimum. At the top, you have to strain to hear anything but the occasional wheeze of the wind.

As to the trail itself, the quickest route to the summit is via a combination of trails starting with USFS trail #64 (aptly named the “Big Frog Trail”), which cover 5.5 miles and about 2,200 ft. of elevation gain from the trailhead off FS road 221. The middle 2 miles of the path does most of the climbing in a quick assault on the north ridge of the mountain after a gentle mile-and-a-half on an old logging road at the beginning. The last two miles join the Benton MacKaye Trail for a steady, smooth ascent, including a nearly flat half-mile to finish.

It’s been nearly five years since I’ve done this one (and that time was in a driving summer downpour), and I’d forgotten what a good stretch of the legs that middle section is—a consistent 10-12 % grade. Some of the upper portion is narrow, slippery, and has a strong cross-trail tilt in places.

Overall, though, this is an accessible approach to a hidden gem close to home, well worth anyone’s time.