Party #1 (Parnell) was driving Vehicle #1 (Mercury) in the eastbound traffic lane of State Route 4 at approximately 45MPH exiting a gradual natural curve in the roadway to her right.  Party #2 (Morris) was driving Vehicle #2 (Chevy) in the Westbound traffic lane of State Route 4 at approximately 35MPH approaching V-1.  P-1, due to her unsafe speed, allowed V-1’s travel trailer to fishtail and drift left of the solid double yellow lines. P-1 attempted to regain control of V-1 by braking and steering V-1 back to the right.  P-1 then lost control of V-1.  P-2 observed that V-1 was out of control and entering the westbound lane.  P-2 attempted to avoid V-1 by swerving to the right and onto the right (North) shoulder.  V-1’s trailer traveled across the westbound lane, onto the right (North) shoulder, and struck V-2.  V-1 and V-1’s travel trailer then overturned onto their left sides, traveled back across the eastbound traffic lane, and off the right (south) shoulder.  After the collision, V-1 came to rest on its left side facing in a Westerly direction off the roadway, and partially down the embankment.  V-1 trailer came to rest on its left side still attached to V-1.  V-2 was moved to the right shoulder prior to my arrival.