Voles are rodents and moles are not. Voles are members of the Mammalia class, the Rodentia order, and the Cricetidae family.
Voles stick to plant life, while the predatory moles are in the market for grubs, insects, and worms.
Moles are probably in the vicinity if there are furrows of soil on your property. Voles eat plants but do not burrow like the underground mole.
Voles are often mistaken for house mice. But the vole has a shorter tail. Moles have tails as long as their bodies.