▁church ▁of ▁E cc les gre ig . ▁No ▁trace ▁remains ▁of ▁the ▁church ▁itself , ▁which ▁was ▁consec r ated ▁in ▁ 1 2 4 2 , ▁ ▁although ▁some ▁early ▁grav est ones ▁remain ▁in - s itu . ▁Also ▁close ▁to ▁the ▁reserve ▁is ▁a ▁cave ▁used ▁by ▁Ne ol ith ic ▁people , ▁located ▁in ▁the ▁cl iffs ▁adjacent ▁to ▁the ▁visitor ▁centre . ▁B ones ▁found ▁within ▁the ▁cave ▁are ▁believed ▁to ▁come ▁from ▁a ▁m idden ▁that ▁was ▁in ▁use ▁between ▁ 4 , 0 0 0 ▁and ▁ 3 , 0 0 0 ▁BC . ▁The ▁b ones ▁were ▁identified ▁as ▁coming ▁from ▁a ▁variety ▁of ▁different ▁cre atures , ▁and ▁pieces ▁of ▁pot tery ▁and ▁an ▁am u let ▁were ▁also ▁found . ▁The ▁Ka im ▁o ' ▁Math ers , ▁a ▁castle ▁thought ▁to ▁have ▁been ▁built ▁in ▁the ▁early ▁ 1 5 th ▁Century , ▁lies ▁just ▁to ▁the ▁north ▁of ▁the ▁reserve ▁boundary . ▁ ▁A ▁lif eb o at ▁station ▁was ▁built ▁in ▁the ▁ 1 8 6 0 s , ▁but ▁a ▁change ▁in ▁course ▁of ▁the ▁North ▁E sk ▁meant ▁that ▁it ▁had ▁gone ▁out ▁of ▁use ▁by ▁the ▁mid - 1 8 8 0 s . ▁The ▁building ▁is ▁now ▁used ▁by ▁SN H ▁to ▁house ▁the ▁reserve ' s ▁visitor ▁centre . ▁ ▁Conserv ation ▁design ations ▁The ▁national ▁nature ▁reserve ▁is ▁class ified ▁as ▁a ▁Category ▁II ▁protected ▁area ▁by ▁the ▁International ▁Union ▁for ▁Conserv ation