Fire fighters from Alfreton were called to reports of a rubbish fire at Nix Hill Industrial Estate yesterday.
The crews arrived on Venture Crescent on the estate at 10.45am and used a water hose to douse the flames.
Later in the day the crew were called out again after reports were made of smoke coming from the woods off Hardwick Close, Blackwell.
They arrived at the scene just before 8pm yesterday and began to investigate the wooded area for signs of fire.
A small bonfire, which was out on arrival, was discovered, and crews damped the area down.