(Leah Hogsten | The Salt Lake Tribune) Brian Frisby, a fire operations specialist with the Bureau of Land Management in Fillmore uses a drip torch to start a prescribed burn within Fish Lake National Forest, Saturday, Nov. 6, 2021. The day's weather conditions of overcast skies and high relative humidity forced the cancelation of the burn after the sagebrush, juniper, pinyon pine and gambel oak would not catch fire. Utah's national forests are ramping up their use of controlled burning to improve forest health.