Untergrund
C horizon
R horizon
R-horizon
background
base surface
basement soil
basement
bed
bedding layer
bedrock
footing
foundation
grade
ground
grounding
key
natural ground
original subgrade
painting ground
painting surface
parent rock
sub-floor
sub-grade
sub-soil irrigation
sub-soil
sub-stratum
sub-surface
subgrade
subsoil
substrate
substratum
subsurface
underfooting
underground strata
underground
underlying bedrock
underlying rock
underlying soil
underlying strata
undersoil
undersurface
Dostopnost
Dostopnost