Rubuta ci gaba don wannan sakin layi - Zasechnaya cherta (, wanda aka fassara shi azaman Babban Abatis Line ko Babban Abatis Border) jerin layin da aka gina, wanda Grand Duchy na Moscow da kuma daga baya Tsardom na Rasha suka kirkira don kare shi daga Crimea-Nogai Raids wanda, da sauri ya motsa tare da Muravsky Trail, ya lalata lardunan kudancin kasar a lokacin jerin Russo-Crimean Wars
Ka yi haƙuri. Yana kudu da layin asali tare da Kogin Oka. Ya kuma yi aiki a matsayin iyaka tsakanin Jihar Muscovite da masu noman daji. A matsayin layin garkuwa da ke da daruruwan kilomita, Babban Abatis Border yana kama da Babban Ganuwar China da limes na Roman.