Related by context. Frequent words. (Click for all words.) 49 vertical shafts 48 Salang Pass 46 #N #E TD 45 #N #W TD 45 Roki tunnel 44 Karakoram Highway 44 sunken hull 44 river Jhelum 44 dirt berm 44 Dalles Dam 44 coffer dam 44 crossbeam 44 Sutlej river 44 transept 43 Zapadnaya mine 43 McNary Dam 43 Wangjialing Coal Mine 43 penstock 43 Bosphorus Strait 43 Narmada river 43 rugged cliffs 43 Ravenel Bridge 42 narrow strait 42 breccia zone 42 meter spacing 42 paved walkway 42 ceiling joists 42 wooden walkway 42 Hooghly river 42 Chenab River 42 bridge abutments 42 stope 42 transversely 42 centimeter diameter 42 parapet wall 41 Conowingo Dam 41 magma chamber 41 lava tubes 41 vertical shaft 41 flyover ramp 41 COPIAPO Chile 41 #m #ft [002] 41 beaver pond 41 steel superstructure 41 icefall 41 crossbeams 41 intermediate casing 41 wellbore 41 venturi 41 Qinghai Tibet railway 41 lava tube 41 g t TPM Cu 40 Trans Siberian railway 40 wooden boardwalk 40 horizontal lateral 40 Gotthard Base Tunnel 40 snowfield 40 Avaya Avaya 40 Brahmaputra River 40 Demilitarized Zone DMZ 40 Drake Passage 40 #/#-in [001] 40 drainage culvert 40 streambed 39 steep canyon 39 heap leach pads 39 Tiananmen Gate 39 enclosed walkway 39 downward sloping 39 roadbed 39 Munabao 39 earthen barrier 39 narrow borehole 39 fiord 39 crater rim 39 Zasyadko mine 39 waterline 39 shaft 39 #ft #m [002] 39 Jhelum river 39 underground passageway 39 A9 highway 39 underground workings 39 headframe 39 Military Demarcation Line 39 sluice gate 39 underground cavern 39 wooden pilings 39 hydraulic rams 39 stalactite 39 Perkiomen Creek 39 train trestle 39 vertically 39 narrow ledge 39 lineal feet 39 Mangla Dam 39 couloir 39 Stillwater Lift Bridge 39 longwall mining machine 39 1c x 38 shutoff valve