At milepost 13.4 we start to see some of the stone work that was put
in place along the line. Many of the early trestles were replaced with fill
and culvert after the initial construction. This is what I have labeled as
Box 4, the first stone box noted on the valuation map. It is described as
2' x 2-1/2' x 80. This image is the northern end of the box. Recent rains
have flushed these out well.
One of the things that I love about AZ is found in this shot. The transition
zone from desert to pines. This shot is the southern end of the box.