The 73 protestors were charged by police on the final day of a four-day workshop on the grounds of Lake Liddell.

A number of protestors cut a perimeter fence and entered land owned by Macquarie Generation.

Twelve then locked themselves to a rail line, while the others blocked the tracks.

Another two gained entry to a mine site and locked themselves to a conveyor belt.

Speaking on behalf of the group, Naomi Hogan was pleased with the outcome.

"We were very well represented as concerned citizens motivated by the impacts of coal and the effects of climate change,” Ms Hogan said.

"The magistrate took into account all our references and the fact that most of us had undertaken volunteer work," she said.