high and low line icons collection. elevation, altitude, apex, nadir, summit, base, depth and linear

vector icon line sign elevation altitude apex nadir summit base depth trough maximum minimum peek dipping plummeting ascending descending skyhigh groundlevel steep sloping rising sinking stratospheric sealevel topmost bottommost lowly heightened lowering tall short deeply swiftly slowly skyline depthless shallow risingfalling vertical horizontal climb plunge elevated depression upsurge