A topographic map with contour lines in a gradient of blue, green, and yellow, illustrating elevation changes across a landscape.
Schlüsselwörter
elevation,
altitude,
map,
geography,
topography,
contour,
gradient,
landscape,
abstract,
pattern,
background,
science,
datum,
cartography,
survey,
research,
relief,
terrain,
isobar,
line,
detail,
abstract background,
graphic,
design,
network,
connection,
study
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