Deer have become a big problem for the farmers east of Yuma. Five years ago there were no fences on the fields, but now there are miles of six to eight-foot wire fences on fields to be planted with lettuce and other crops. One farmer we talked with in September told us the he recently counted something like 80 deer in a single field. This is right at the Gila River on the edge of nothing but desert. He encountered a mountain lion in that same field.