[Illustration: Typical mountain range land, heavily infested with
pocket gophers--Davis Lake, Oregon--before treatment.]
[Illustration: Same area one year later after pocket gophers were
brought under control and native grasses had had a chance to reseed.]
[Illustration: Farm land infestation--Texas. Mounds represent pocket
gopher workings.]
[Illustration: Mountain meadow in Utah. Picture taken just after snow
had melted in spring. Ridges of dirt show extent of pocket gopher
operations under snow in winter.]
[Illustration: Pocket gopher infestation--Louisiana.]
[Illustration: Break in terrace caused by pocket gophers burrowing
through embankment.]
[Illustration: Pocket gopher infestation along highway.]
[Illustration: Flood water starting through a pocket gopher burrow
passed under a cement highway,--]
[Illustration: Flooded the barrow pit on the opposite side of road, and
poured into farmer's field, leaving a deep wash as a monument.]
[Illustration: Damage starting from pocket gopher hole in irrigation
canal bank--]
[Illustration: Soon results in bad breaks causing expensive repairs and
loss to crops through failure of irrigation water.--]
[Illustration: And is often responsible for start of gullies.]