hillsides, arroyos, slickrock, mesas, mountainsides, ridges, canyonlands, wasatch range, buttes, hills, foothills, ravines, crags, mountains, valleys, cliffs, knolls, gulch, cataract canyon, hogback, crevasses, snowfield, precipices, escarpments, desert, chaparral, backcountry, cirques, waterfalls, tarns, meadows, rimrock, lassen peak, brushland, rockface, tumbleweeds, brushy, rills, timberline, teton range, creeks, sagebrush, sonoran desert, sandbars, boulders, seracs, aspens, bluffs, dells, ledges, outcroppings, riverbed, freeways, crevices, snowy mountains, gorges, sloughs, fumaroles, thickets, scrub oak, skyscrapers, wilderness, hummocks, scree, gullies, massifs, palisades, creek bed, lava, donner pass, streambed, ridgeline, vistas, sage brush, mountaintop, treeline, mountaintops, flatlands, treetops, promontories, switchback, expanses, pogonip, muskeg, moonlike, hardpan, stratovolcano, dunes, chasms, scrublands, rapids, alpenglow, ozark plateau, slopes, gnatcatchers, mohave desert, glades, volcanic crater, manzanita, pinnacles, greasewood, tableland, canyon, gorge, gulches, ravine, fjords, fiords, wadis, gully, caves, headlands, glens

big bend national park, canyonlands national park, crotalus tigris, escalade, flowing, tiger rattlesnake, zion national park