across
ahead
america
american
california
clear
concept
conceptual
crossing
death
desert
dry
dryness
empty
exploration
exploring
flat
forward
global
heat
land
landscape
lonely
motion
moving
national
nobody
pace
park
playa
racetrack
racing
running
salt
scenery
scenic
sky
slow
speed
stone
target
thirst
thirsty
tracks
usa
valley
warming