Northern Wyoming Wildland Fire School When: Thursday, April 4, 2024 to Sunday, April 7, 2024 Sign - Up Link Classes are: S-130-190-L 180 April 4,5,6,7. S-131. April 5,6 S-212 April 5,6,7 S-215 April 5,6 S-230/S-231 April 4,5,6 S-290 April. 4,5,6 S-339 April 5,6 D-110 April 4,5,6,6