Answer: ridge

AnswerCrossword Clue
RIDGEHill line
RIDGEFeature of a Ruffles potato chip
RIDGEHill crest
RIDGECorrugated paper feature
RIDGERuffles feature
RIDGEHead of Homeland Security
RIDGEHomeland Security chief
RIDGEFirst head of Homeland Security
RIDGEThe first Secretary of Homeland Security
RIDGEThe Oak ... Boys
RIDGERange of hills
RIDGEElevated strip of land
RIDGELow hill
RIDGECorduroy feature
RIDGEFirst Homeland Security secretary
RIDGEMountain crest
RIDGEMountain chain
RIDGEHomeland Security head
RIDGEHigh ground
RIDGEHigh-pressure system
ridgeto form into long, narrow elevations
RIDGEFingerprint feature
RIDGEBluff
RIDGEChain of hills
RIDGEWavy potato-chip feature
RIDGEHill
RIDGEHogback
RIDGEPotato-chip feature
RIDGERaised strip
RIDGESpine or hogback
RIDGEFirst DHS secretary
RIDGEPotato chip feature
RIDGERaised area
RIDGEMountain feature
RIDGEFirst secretary of Homeland Security
RIDGERuffles potato chip feature
RIDGECrest
RIDGEMountain spine
RIDGERuffles chip feature
RIDGEBlue .. Mountains