▁Scottish ▁High lands . ▁The ▁line ▁of ▁military ▁communication ▁and ▁supply ▁along ▁sout he astern ▁Scotland ▁and ▁n ort he astern ▁England ▁( i . e ., ▁D ere ▁Street ) ▁was ▁well - fort ified . ▁In ▁southern - most ▁C aled onia , ▁the ▁lands ▁of ▁the ▁Sel gov ae ▁( appro xim ating ▁to ▁modern ▁Dum fri ess hire ▁and ▁the ▁Stewart ry ▁of ▁Kir kc ud br ight ) ▁were ▁heavily ▁plant ed ▁with ▁for ts , ▁not ▁only ▁establish ing ▁effective ▁control ▁there , ▁but ▁also ▁comple ting ▁a ▁military ▁en closure ▁of ▁south - central ▁Scotland ▁( most ▁of ▁the ▁Southern ▁U pl ands , ▁Te vi ot dale , ▁and ▁western ▁Twe ed dale ). ▁In ▁contrast ▁to ▁Roman ▁actions ▁against ▁the ▁Sel gov ae , ▁the ▁territ ories ▁of ▁the ▁Nov ant ae , ▁Dam non ii , ▁and ▁V ot ad ini ▁were ▁not ▁plant ed ▁with ▁for ts , ▁and ▁there ▁is ▁nothing ▁to ▁indicate ▁that ▁the ▁Rom ans ▁were ▁at ▁war ▁with ▁them . ▁ ▁AD   8 4 – 1 1 7 ▁ ▁Agr icola ' s ▁success ors ▁are ▁not ▁named ▁in ▁any ▁surv iving ▁source , ▁but ▁it ▁seems ▁they ▁were ▁unable ▁or ▁unw illing ▁to ▁further ▁sub due ▁the ▁far ▁north . ▁The ▁for tr ess ▁at ▁In cht uth il ▁was ▁dis m ant led ▁before ▁its ▁completion ▁and ▁the ▁other ▁fort ifications ▁of ▁the ▁G ask ▁R idge ▁in ▁Per th shire , ▁ere cted ▁to