Sign marking Badger Springs Road off of I-17 Arizona. This road leads to a hiking trail in the Agua Fria National Monument.

Hiking woman, National Park Hohe Tauern, Tyrol, Austria

Climbers ascending Mt. Marmolada, Dolomites, Westgrat fixed rope route, Mt. Marmolada in the back, Trentino, Italy, Europe

Signpost in the High Tatras, Slovakia

Cairns on the hiking trail, Glacier du Tour, glacier and mountain peaks, high alpine landscape, left Aiguille du Chardonnet, Chamonix, Haute-Savoie, France, Europe

Three Free States Stone, border stone, hiker with backpack sitting on bench, Green Belt, Kolonnenweg, border path, inner German border, hiking trail, Bavaria, Saxony, Thuringia, Germany, Europe

Sign, Marking for a hiking trail, Stay on path, Stay on path, Iceland, Europe

Three-Free-States-Stone, border stone, Green Belt, Kolonnenweg, border path, inner-German border installation, hiking trail, Bavaria, Saxony, Thuringia, Germany, Europe

Trail marker of the Lewis and Clark National Historic Trail, Montana, USA

Signpost for hikers, Slovakia

A sign marks the Manistee River Trail, Wellston, Michigan, USA

Walking trail on the Isla del Sol, Island of the Sun, in Lake Titicaca, Copacabana, Bolivia, South America

Hiking marker, hiking trail in the forest, near Scharnitz, Bavaria, Germany, Europe

Trail in front of the peak of the Grossglockner, National Park Hohe Tauern, Tyrol, Austria

Sign, Rothaarsteig hiking trail, North Rhine-Westphalia, Germany