Rocky Butte has a top secret Navy SEAL operation deep inside the mountain. There is actually a submarine base with an underground river which flows to the Columbia. More than one hiker has been disappeared from the trails up there.

Furthermore, Downtown Portland has old steam tunnels which the Joint Terrorism Task Force has ready for military use to bypass traffic during civil war. Cell phone towers can crank out high powered microwave radiation sufficient to effectively stun anyone within proximity where cell phones are functional.