Monday afternoon, a passing motorist observed the missing 2000 Chevrolet Metro on State Route 248 and flagged down a school bus.
Police found the vehicle and the four youths inside, dead.
Police say the car appeared to have left the road, struck a bridge abutment and landed upside down in a creek bed.
David Cady, 17, Tiara O'Dell, 17, Jered Fry, 15, and Joey Lubberts, 21, were all killed.
The four were first reported missing Saturday.
Three were students at Jasper-Troupsburg High School. Lubberts was a recent grad of that school.
School is in session there today.