My parents were the caretakers at North Clackamas Centeral Park.It was around 1am in the morning and I was talking to my girlfriend on my cellphone while having a cigarette on my parents front porch. Suddenly my cellphone lost signal then died. I was standing there trying to turn it back on cause I knew it was almost fully charged. As I was doing that I was suddenly aware of a craft directly above me just above treetops height, it was triangular in shape tappered at the ends with three light green whitish domes underneath. it was completely silent as was I too to be honest. It was coming from the north flying south at about 10 mph. It was either unaware of my presence or didn't care. it continued to fly south at the same speed until I lost sight of it past the treetops. I went back inside my parents place and could not sleep all night. I never told my parents about it for they would probably just think I was just crazy or making it up. I stopped staying at my parents place after that and moved in with my grandparents.