trestle bridge, roadbed, berm, hyalite, roadway, rockslide, walkway, retaining wall, overpass, narrow gauge, serac, gulch, falsework, underbridge, chainlink fence, donner pass, trailhead, canyon, posthole, chilkoot pass, culvert, seracs, revetment, couloir, truss bridge, hogback, parkway, bootjack, snowfield, slickens, butte, sawbill, scoria, switchback, crossway, sideroad, pedestrian bridge, overcrossing, fingerpost, ravine, tarmacadam, snowslide, embankment, gravel, cartway, trestles, lassen peak, sledder, palings, sluiceway, driveway, rutty, patroller, glacial boulder, bridle path, guardrail, bailey bridge, viaduct, cog railway, icefield, highway, hymettus, sinkhole, coulee, headrace, boulder, muskeg, underpass, rimrock, tollhouse, slickrock, driftway, firebreak, picnic area, jackknifing, footbridge, snowplow, subgrade, pogonip, oversnow, rock outcrop, bicycler, esker, backroad, throughway, cape flattery, footpath, manway, road, rockface, gondola, nature trail, slabbing, trackway, creek, roundtop, undercliff, bascule, greenway, millrace, freeway, mendenhall glacier