HomeUSAArizonaSouthern ArizonaMount Lemmon (Santa Catalina Mountains)Mount Lemmon (Catalina Highway)1 - Lower HighwayZoo, TheEctotherm TowerStinger5.11a5.8sportFA Karen Wilson, Don Wilson, December 2021UPDATED BY vietnguyen Tick this climbDescriptionRoutes in Ectotherm Tower1Deranged Scorpion5.10bSport2Queen Bee5.11aSport3Stinger5.11aSport4Frigid Lizard5.8Sport