▁It ▁mainly ▁follows ▁the ▁D oll is ▁Brook , ▁and ▁is ▁one ▁of ▁the ▁many ▁par ks ▁and ▁open ▁spaces ▁in ▁Bar net . ▁ ▁History ▁D oll is ▁Valley ▁Green walk ▁is ▁based ▁on ▁the ▁Brook side ▁Walk , ▁built ▁by ▁Fin ch ley ▁Council ▁( now ▁part ▁of ▁Bar net ) ▁in ▁the ▁ 1 9 3 0 s . ▁It ▁was ▁the ▁brain child ▁of ▁leading ▁Fin ch ley ▁Coun c ill or , ▁Alfred ▁Pi ke , ▁and ▁followed ▁M utton ▁Brook ▁west ▁from ▁Fall oden ▁Way ▁to ▁its ▁j unction ▁with ▁D oll is ▁Brook , ▁and ▁then ▁the ▁D oll is ▁north ▁to ▁the ▁Fin ch ley ▁boundary ▁in ▁Wy att s ▁Farm ▁Open ▁Space , ▁opposite ▁Wal field ▁Avenue . ▁M utton ▁Brook ▁was ▁the ▁southern ▁boundary ▁of ▁the ▁bor ough ▁and ▁D oll is ▁Brook ▁the ▁western ▁one , ▁and ▁the ▁walk ▁was ▁almost ▁all ▁built ▁on ▁the ▁Fin ch ley ▁side . ▁At ▁West bury ▁Road , ▁the ▁gard ens ▁come ▁down ▁to ▁the ▁bro ok , ▁so ▁Pi ke ▁persu aded ▁Hend on ▁Coun c ill ors ▁to ▁ac quire ▁the ▁land ▁on ▁their ▁side ▁of ▁the ▁bro ok ▁so ▁that ▁the ▁walk ▁could ▁cross ▁over ▁to ▁the ▁Hend on ▁side ▁for ▁this ▁stretch . ▁ ▁The ▁Green walk ▁itself ▁was ▁developed ▁by ▁the ▁London ▁Bor ough ▁of ▁Bar net ▁with ▁the ▁Coun tr ys ide ▁Commission ▁( now ▁Natural ▁England ) ▁and ▁the ▁Coun tr ys ide ▁Management ▁Service . ▁In ▁March