An anti-mining group has blocked trucks and workers from entering the Karangahake Gorge.
New Talisman Gold Mines announced last week it had found over 8500kg of high-quality gold at its Dubbo site in the gorge at the southern end of the Coromandel.
Environmental group Protect Karangahake said it had 30 people blocking access to the site for an hour and a half this morning.
Its chair, Duncan Shearer, said they were doubling their efforts to protect the gorge.
“Usually two or three times a week we’ll be a presence on the mountain, sometimes just noting what’s happening in the sense of vehicle movements.
“Sometimes walking up the mountain track, holding up the vehicles as we walk up the hill to enjoy the beautiful view.
“Sometimes we’re doing these big protests that get arranged at quite short notice.”
Mr Searer said protesters were warned by police this morning but moved when asked.