▁by ▁a ▁wall . ▁ ▁An cient ▁Terra ces ▁and ▁Tower ▁ ▁The ▁remains ▁of ▁ancient ▁terra ces ▁and ▁Pur v ish ill ▁Tower ▁are ▁located ▁approximately ▁ 2 0 0 ▁meters ▁due ▁west ▁of ▁The ▁Kir na ▁at ▁the ▁base ▁of ▁Pur vis ▁Hill . ▁Although ▁they ▁are ▁techn ically ▁of ▁unknown ▁origin , ▁it ▁is ▁believed ▁that ▁the ▁terra ces ▁belong ▁to ▁the ▁P ict ish ▁period ▁( 6 0 0 - 7 0 0 AD ). ▁Given ▁their ▁unusual ▁scale , ▁character ▁and ▁location , ▁the ▁terra ces ▁may ▁have ▁been ▁intended ▁to ▁provide ▁level ▁ground ▁for ▁gard ens ▁or ▁orch ards , ▁although ▁a ▁more ▁util itar ian ▁agricult ural ▁function ▁is ▁also ▁possible . ▁ ▁Kir nie ▁Tower ▁ ▁Appro xim ately ▁ 8 0 ▁meters ▁to ▁the ▁south ▁of ▁The ▁Kir na , ▁across ▁the ▁A 7 2 , ▁is ▁the ▁site ▁of ▁Kir nie ▁Tower . ▁Its ▁site ▁was ▁pointed ▁out ▁in ▁ 1 8 5 6 ▁by ▁residents ▁of ▁Walker burn ▁who ▁were ▁present ▁at ▁its ▁removal ▁in ▁circa ▁ 1 8 4 0 ▁when ▁its ▁stones ▁were ▁removed ▁for ▁building ▁purposes ▁elsewhere ▁on ▁the ▁H ors burgh ▁estate . ▁Long ▁after ▁its ▁dis m ant lement ▁it ▁was ▁used ▁as ▁a ▁she ph erd ' s ▁h ut . ▁Maps ▁published ▁as ▁far ▁back ▁as ▁ 1 6 5 4 ▁refer ▁to ▁" K ir n " ▁or ▁" K ir na " ▁in ▁approximately ▁the ▁location ▁of ▁Kir nie ▁Tower . ▁Or dn