What causes mole tunnels to appear as raised ridges in a lawn?
Answer
They dig shallow tunnels just beneath the surface while hunting for insects
Mole tunneling style is dictated by their search for prey. Because they are hunting for invertebrates like earthworms and grubs, they frequently move just beneath the surface of the soil. As they push through this shallow layer, they displace the dirt upward, creating the characteristic raised ridges seen on lawns. This activity is fundamentally different from the surface runways of voles, which are worn paths through grass, and the deeper, mound-producing excavations of gophers.
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