bumpy, rough, stormy, tumultuous, turbulent, shaky, dicey, testy, frosty, uneven, prickly, wobbly, rancorous, treacherous, barren, fractious, steep, tough, bumps, tricky, sandy, tortuous, muddy, inauspicious, torrid, tempestuous, fitful, acrimonious, perilous, stony, difficult, rough sledding, unsteady, rollercoaster, rutty, tenuous, boggy, messy, patchy, rutted, sour, icy, arduous, rocks, slippery, solid, smoothed, floundered, tumult, troubles, meandering, chilly, thorny, hummocks, silty, tense, precarious, choppy, placid, disastrous, spotty, rockiness, contentious, stumbling, craggy, murky, checkered, inhospitable, eventful, uncharted, bitter, miserable, roller coaster, unchartered, levigated, hazy, uneasy, mucky, fragile, dismal, pathless, untrodden, pebbly, foggy, chummy, setbacks, plain sailing, bleak, unstable, awkward, desolate, lackluster, strained, stellar, turbulence, struggles, outwash, chaotic, slickrock, torturous, disappointing, cozy, western, berkeley, charlie, mac, mao, mcdonald, monroe, mozart, pauline, poe, reynolds, super, ada, bach, brady, calvin, carter, chester, clinton, dewey, wooded, precipitous, rugged, windswept, strewn, gravelly, shingly, forested, cliffy, inaccessible, scarped, snowcovered, eroded, swept, treeless

., abies lasiocarpa, alpine anemone, alpine fir, alpine lady fern, american dog tick, american magpie, anemone tetonensis, aquilegia coerulia, aquilegia scopulorum calcarea, arkansas, arkansas river, athyrium distentifolium, barbary ape, bare, bitterroot, black-tailed deer, blacktail, blacktail deer, blenny, blue columbine, boulder, break up, bristlecone pine, buphthalmum salicifolium, california single-leaf pinyon, california whipsnake, cape horn, centennial state, chaparral pea, chickweed phlox, chlorura chlorura, citellus variegatus, co, colorado, colorado beetle, colorado plateau, colorado potato beetle, colorado river, colorado springs, combtooth blenny, coney, cony, cottonweed, craggy, cutleaved coneflower, cystopteris montana, dermacentor variabilis, eastern red cedar, engelmann's spruce, engelmann spruce, epinephelus adscensionis, eumeces callicephalus, feebly, foreland, fringed grass of parnassus, gem state, gentiana thermalis, gentianopsis thermalis, genus rickettsia, glandular labrador tea, great auk, great divide, green-tailed towhee, gymnocarpium robertianum, headland, id, idaho, inlet, juniperus virginiana, larix lyallii, leptinotarsa decemlineata, leptotyphlops humilis, lewisia rediviva, lichanura trivirgata, limestone fern, louisiana purchase, lyre snake, macaca sylvana, macaque, machaeranthera tortifoloia, marmota flaviventris, masticophis lateralis, mexican hat, mojave aster, mountain anemone, mountain bladder fern, mountain pride, mountain skink, mount elbert, mount sherman, mouse hare, northern oak fern, odocoileus hemionus columbianus, parnassia fimbriata, penstemon newberryi, penstemon whippleanus, phlox bifida, phlox stellaria, pica pica hudsonia, picea engelmannii, pick, pickeringia montana, pika, pinguinus impennis, pinus aristata, pinus californiarum, plains spadefoot, polemonium viscosum, potato beetle, potato bug, procavia capensis, promontory, purple saxifrage, rand, ratibida columnaris, recess, red cedar, red juniper, reef, retiring, ring blackbird, ring ouzel, ring thrush, rock-ribbed, rockbound, rockchuck, rocky mountain, rocky mountain bristlecone pine, rock hind, rock hyrax, rock kangaroo, rock pink, rock rabbit, rock squirrel, rock wallaby, rosy boa, rudbeckia laciniata, rugged, sagebrush lizard, sand phlox, san juan mountains, saxifraga oppositifolia, scaphiopus bombifrons, sceloporus graciosus, selkirk mountains, sherman, short-grass, shortgrass, siouan, sioux, skunk-weed, skunkweed, stingaree-bush, striped racer, subalpine fir, subalpine larch, talinum calycinum, terrain, terrestrial planet, tor, trapper's tea, turdus torquatus, western blind snake, wheeler peak, whipple's penstemon, witwatersrand, woodland oxeye, wood tick

bouldered, bouldery, difficult, hard, rough, stony, unsmooth, unstable