The Minnesota Department of Natural Resources has posted solicitations for firefighting helicopters at their bases in Cloquet, Princeton and Roseau. Here is an excerpt from their web site:
Service of a helicopter that is fully operated by qualified personnel, and equipped to meet specifications for use in administration, management and protection of lands from wildfire in Minnesota. The types of services which aircraft would generally be required to perform, but not restricted to are: Transportation of personnel, Equipment and supplies, Reconnaissance flights, Fire detection flights, Photography work involving, prolonged slow flight, Helicopter–bucket and fire missions, Administrative flying, Incident Support. Project Technical information contact: Bill Schuster at 218-327-4573.