contour line
pl: contour lines
Related Words
isolineisoplethaltitudeelevationtopographymapcartographyterrainreliefslopegradientcontourintervalheightpeaksummitvalleyridgesaddleplateaudepressionbasincliffsteepnesslevelplanesurfacecoordinatebenchmarksurveyinggeodesygeographygeologylandscapecontouringinterpolationisobarisothermisobathmappingprojectionscalelegenddatumsea levelverticalhorizontalcross sectionprofilehypsometrybathymetrycurveboundaryperimeteroutlineshapeformmorphologysteepflatundulatingruggedsmooth