The saltie was found caught in a trap by farmers about 35km down-river from Katherine at Ballongilly Farms.

They raised the alert and ranger Cameron Winn removed the crocodile on Monday.

Ranger Chris Heydon said the crocodile is "easily" large enough to endanger a human.

"This isn't the biggest saltwater crocodile going around but it'd still eat you no worries, see you later," he said.

"We do all our surveying and trapping but they still do get through.

"The area he was taken from was in Zone Two of our management areas so we do extensive trapping and surveys out there.

"But they still show up in the Katherine Gorge area so it's clear that salties do come through town from time to time," Mr Heydon said.

The crocodile is the second saltie rangers have picked up over the past few months after a 2.3 metre specimen was found near Edith Falls in April.

In comes just as coronavirus restrictions are starting to ease across the Territory and Nitmiluk National Park's Leliyn (Edith) and the gorge areas are starting to invite people to visit again.

Just don't go swimming in these inland waterways remains the Crocwise message.

"We haven't really found any big ones this year but I'm sure we will still get one up around the three to four metre mark," Mr Heydon said.

"There's even some evidence to say the smaller crocodiles are over-represented in attacks.

"Juveniles haven't learnt yet what's good to go for and what isn't so they just have a crack.

"That's why we tell people to stay at least five metres away from the water's edge.

"If you'd seen a crocodile really go for something you'd understand why, even ones of this size just have incredible speed and power out of the water," he said.