These small mammals thrive in subterranean environments while feeding on the roots of garden and ornamental plants, shrubbery and trees. They have also been known to destroy hoses and sprinkler devices. The complex system of burrows created by one gopher may cover an area of 2,000 square feet, as the animals stay busy during the winter extending their territory. With a lifespan of three to five years, one female can produce up to 18 offspring annually, which adds to the potential for devastation. Unusual mound-like structures are typically indications of mole infestation. Though often found in more rural areas, the invaders may also inhabit residential properties. Due to the extent of their underground network, elimination requires professional assistance.