This is a multi for geocachers that don't like complicated multis. You stay on level ground; don't go down the hill. You don't even have to move your car.
At the GZ there are several AT&T boxes. The largest has a number in the format "abcd" on it.
The coordinates for the second and final stage are: N42*59.efg, W85*36.hij where e=a-b, f=b-a, g=d, h=d+a, i=d-a, and j=b+d.