▁R idge ▁is ▁. ▁ ▁The ▁feature ▁was ▁named ▁after ▁the ▁coast al ▁l ago on ▁of ▁Ark ut ino ▁in ▁sout he astern ▁Bulg aria . ▁ ▁Location ▁Ark ut ino ▁Beach ▁is ▁cent red ▁at ▁ ▁( B ul gar ian ▁mapping ▁in ▁ 2 0 0 5 , ▁ 2 0 0 9 ▁and ▁ 2 0 1 7 ). ▁ ▁See ▁also ▁ ▁Tang ra ▁Mountains ▁ ▁Living ston ▁Island ▁ ▁List ▁of ▁Bulgar ian ▁to pon ym s ▁in ▁Ant arct ica ▁ ▁Ant ar ctic ▁Place - names ▁Commission ▁ ▁Maps ▁ ▁L . L . ▁Ivan ov ▁et ▁al . ▁Ant arct ica : ▁Living ston ▁Island ▁and ▁Green wich ▁Island , ▁South ▁Sh et land ▁Islands . ▁Sc ale ▁ 1 : 1 0 0 0 0 0 ▁top ographic ▁map . ▁Sof ia : ▁Ant ar ctic ▁Place - names ▁Commission ▁of ▁Bulg aria , ▁ 2 0 0 5 . ▁ ▁Ant ar ctic ▁Digital ▁Database ▁( ADD ). ▁Sc ale ▁ 1 : 2 5 0 0 0 0 ▁top ographic ▁map ▁of ▁Ant arct ica . ▁Scient ific ▁Committee ▁on ▁Ant ar ctic ▁Research ▁( SC AR ). ▁Since ▁ 1 9 9 3 , ▁regularly ▁upgrad ed ▁and ▁updated . ▁ ▁L . L . ▁Ivan ov . ▁Ant arct ica : ▁Living ston ▁Island ▁and ▁Smith ▁Island . ▁Sc ale ▁ 1 : 1 0 0 0 0 0 ▁top ographic ▁map . ▁Man fred ▁W ör ner ▁Foundation