, ▁displays ▁ ▁a ▁gentle ▁equ ator - f acing ▁slope ▁and ▁is ▁rounded . ▁ ▁Sc ar ps ▁discussed ▁here ▁have ▁a ▁ste ep ▁pole - f acing ▁side ▁and ▁have ▁been ▁found ▁between ▁ 5 5 - 5 9 ▁degrees ▁north ▁and ▁south ▁latitude ▁ ▁S cal loped ▁top ography ▁is ▁common ▁in ▁the ▁mid - lat itudes ▁of ▁Mars , ▁between ▁ 4 5 ° ▁and ▁ 6 0 ° ▁north ▁and ▁south . ▁ ▁S cal loped ▁top ography ▁ ▁S cal loped ▁top ography ▁is ▁common ▁in ▁the ▁mid - lat itudes ▁of ▁Mars , ▁between ▁ 4 5 ° ▁and ▁ 6 0 ° ▁north ▁and ▁south . ▁It ▁is ▁particularly ▁prominent ▁in ▁the ▁region ▁of ▁U top ia ▁Plan it ia ▁in ▁the ▁northern ▁hem is phere ▁and ▁in ▁the ▁region ▁of ▁P ene us ▁and ▁Am ph it rit es ▁P ater a ▁in ▁the ▁southern ▁hem is phere . ▁Such ▁top ography ▁consists ▁of ▁shall ow , ▁rim less ▁de press ions ▁with ▁scal loped ▁edges , ▁commonly ▁referred ▁to ▁as ▁" scal loped ▁de press ions " ▁or ▁simply ▁" scal lo ps ". ▁S cal loped ▁de press ions ▁can ▁be ▁isolated ▁or ▁cluster ed ▁and ▁sometimes ▁seem ▁to ▁co ales ce . ▁A ▁typical ▁scal loped ▁de pression ▁displays ▁a ▁gentle ▁equ ator - f acing ▁slope ▁and ▁a ▁ste eper ▁pole - f acing ▁sc arp . ▁This ▁top ographic ▁asym met ry ▁is ▁probably ▁due ▁to ▁differences ▁in ▁ins