A Portland woman was killed Sunday morning in a crash at the Three Rivers Recreational Area. Carrie Shaver, 37, was a passenger on an ATV driven by a Portland area man who failed to stop for a stop sign, failed to negotiate a right turn, and went over a 30 foot embankment. Shaver was pronounced dead at the scene. Jefferson County deputies suspect speed and alcohol are involved.  The male driver was taken to a hospital with non-life-threatening injuries.