Tucson Fire Department issued the following announcement on Nov. 3.
Tucson Fire spent the morning working alongside @tucsonwateraz and fire agencies from across southern Arizona to conduct the annual controlled burn of the Sweetwater Wetlands.
The exercise provides mosquito mitigation while also serving as an excellent training opportunity for firefighters looking to get certified in wildland firefighting Following two days of in-class instruction, around 35 firefighters gained valuable experience they can now take with them out in the field
Original source can be found here.