How deep is a wombat's burrow?

The Common Wombat's burrow tends to be anywhere between one metre and eight metres in length.

The Southern Hairy Nosed wombat tend to dig a burrow between 10 and 20 metres in length.

The Northern Hairy Nosed wombat has a burrow of similar length to its Southern cousin, although some burrows in the Northern Hairy Nosed wombat's habitat of Epping Forest in Queensland have been measured at ninety metres in length.