EAGLE MOUNTAIN, Utah County — A new, human-caused wildfire is burning on the west side of Lake Mountain, although it is reported to be at only 20 acres.

Three fire crews, a couple of engines and an aerial attack are being coordinated to extinguish the Wiley Canyon blaze, said Bureau of Land Management spokeswoman Cami Lee.

The fire is burning north to south, with 10-foot flame lengths, she said, and was first spotted at 4:15 p.m. Saturday.

Earlier in the day, crews successfully quelled a nearly 1,600-acre blaze that at one point had threatened the Deseret Chemical Depot, once home to the nation's largest chemical weapons stockpile but now in the closure process.

The rangeland fire at Ophir Creek, Tooele County was first reported about 5 p.m. Friday near mile marker 4 on state Route 73 and is believed to be human-caused.

Lee said the fire grew to 1,572 acres but was fully contained by Saturday morning and crews have since been pulled off scene.