abysses, gulfs, precipices, crevasses, gaps, fissures, abyss, wormholes, interpenetrate, cleavages, rifts, crags, rockface, divide, crevices, seracs, ravines, passageways, interstices, schisms, gorges, promontories, bridges, gapes, knolls, ruts, massifs, escarpments, ledges, cliffs, canyons, stalactites, rills, cracks, nothingness, chuckholes, slickrock, differences, scree, infinities, colossi, arroyos, potholes, limitlessness, quicksand, boulders, valleys, nexuses, cirques, obstacles, outcroppings, treacheries, morass, pinnacles, paths, contradictions, plateaux, tar pit, gullies, polarities, hummocks, hindu kush mountains, staircases, barriers, disparities, complicities, littleness, fiefs, crosscurrent, rabbit hole, arcs, traverse, sastrugi, verticality, inequalities, hyperspace, topographies, perplexities, interpenetration, insanities, tightrope, pocks, fortresses, infinitude, rampart, caverns, commonalties, dichotomies, snowfield, expanses, tunnels, doorways, stratums, maws, mountains, hypocrisies, disjuncture, murk, edifices, moonlike, frontiers, haystacks, chasm, gulf, precipice, crevasse, gash, gashes, defiles, whirlpools