1) Aretes 2) Welts 1) Chains of hills 2) Chains of mountains 3) Chip features 4) Corduroy feature 5) Corduroy features 6) Features of some chips 7) Hilly terrain features 8) Lines of dirges 9) Long narrow elevations 10) Low mountain crests 11) Raised areas 12) Ruffles features 13) Some chip features 14) Some potato chip features