Yes, GOPHERS is a Scrabble word!

Letter values in Scrabble US: G 2, O 1, P 3, H 4, E 1, R 1, S 1.

Is it a valid word?

GOPHERS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a zealously energetic person (especially a salesman)
a native or resident of Minnesota
any of various terrestrial burrowing rodents of Old and New Worlds; often destroy crops
burrowing rodent of the family Geomyidae having large external cheek pouches; of Central America and southwestern North America
burrowing edible land tortoise of southeastern North America

Also: ground squirrel, pocket gopher, pouched rat, gopher tortoise, gopher turtle, gopherus polypemus.

Not playable in Scrabble US: MINNESOTAN.