Crews were on the scene by 11:30 a.m., according to Unified Fire Battalion Chief Lee Ascarte. Ascarte said he expected the fire to be fully contained by Sunday morning. As of Saturday afternoon, the fire had died down and crews were keeping busy mopping up hot spots.
Herriman spokeswoman Tami Moody said the blaze was burning grass and wind was pushing it southeast.
"The way that it's going south right now," she said, "there are no residences in danger."
Herriman closed Black Ridge Reservoir on Saturday afternoon, in anticipation of letting helicopters use it to scoop up water, but Ascarte said the fire never got big enough for crews to need any aerial support. The reservoir has since been reopened.
Ascarte said close to 10 brush trucks and one UFA hand crew responded to the fire.