lands ▁is ▁a ▁series ▁of ▁connected ▁mountain ▁ranges ▁in ▁western ▁Santa ▁Cruz ▁County . ▁The ▁High lands ▁are ▁north west ▁of ▁N og ales ▁and ▁are ▁border ed ▁on ▁the ▁east ▁by ▁the ▁Santa ▁Cruz ▁River ▁Valley , ▁that ▁is ▁travers ed ▁north – s outh ▁by ▁Inter state ▁ 1 9 . ▁Ac ross ▁the ▁valley ▁east wards ▁are ▁the ▁tall ▁Santa ▁R ita ▁Mountains ▁in ▁the ▁n ortheast , ▁and ▁the ▁smaller ▁San ▁C ay et ano ▁Mountains , ▁east ▁and ▁adjacent ▁to ▁N og ales ' s ▁n ortheast . ▁The ▁sequence ▁of ▁the ▁north - to - s outh ▁T um ac ac ori ▁High lands ▁is ▁as ▁follows : ▁ ▁North ▁to ▁south : ▁ ▁T um ac ac ori ▁Mountains ▁ ▁Pe ck ▁C any on – ( Pe ck ▁C any on ▁Road ) ▁ ▁At asc osa ▁Mountains ▁- ▁( 6 ▁mi ▁× ▁ 9 ▁mi ) ▁ ▁Ruby ▁Road -( to ▁Ruby , ▁Arizona ); ▁P ena ▁Blan ca ▁Lake ▁ ▁P aj ar ito ▁Mountains ▁ ▁Mexico - A rizona ▁border ▁ ▁Sierra ▁La ▁Es mer al da -( the ▁Emer ald ▁Mountains ) ▁ ▁A ▁Santa ▁Cruz ▁county - border ▁" boot heel " ▁extends ▁south west ; ▁the ▁boot heel ▁contains ▁C obre ▁R idge , ▁and ▁it ▁is ▁connected ▁north west ▁to ▁a ▁small ▁range , ▁the ▁San ▁Luis ▁Mountains ▁which ▁are ▁in ▁the ▁sout heast ▁of ▁the ▁Alt ar ▁Valley , ▁and ▁borders ▁the ▁Buenos ▁Aires ▁National ▁Wild life