There are concerns logging operations came within metres of a wedge-tailed eagle's nest in a disputed logging coup in Tasmania's north-west.

The unoccupied nest was discovered last month by a Forestry Tasmania contractor 20 metres from the harvest boundary.

All operations were ceased within 500 metres of the nest.

Jenny Weber from the Bob Brown Foundation was shocked and astounded by the discovery.

"Wedge-tailed eagles are an endangered species and Tasmanian logging laws do say that a 10-hectare protection zone is needed around wedge-tailed eagle nests," she said.

"It's Forestry Tasmania's responsibility to be looking for these wedge-tailed eagle nests prior to the logging."

A Forestry Tasmania spokesman said ground and helicopter searches prior to the harvest did not identify any eagle nests.

The nest was unoccupied, no eagle was harmed and the nest was not damaged, the agency said.

But Ms Weber said the failure was inexcusable.

"The concern about the ongoing logging of endangered species' habitat is that it hastens the path to extinction of endangered species," she said.

Forestry Tasmania said a regeneration of the coupe would be undertaken as quickly as possible to reduce long-term disturbance.

Forestry Tasmania said the community had requested a low-to-moderate intensity burn be undertaken.

But Ms Weber said it should be abandoned.

Former Australian Greens leader Bob Brown was arrested at a logging protest in January at the coup and is challenging Tasmania's protest laws in the High Court.