A grass fire forced officials to close Wyoming Boulevard for about two hours on Friday afternoon.
The fire, which was reported to officials at about 4 p.m., burned about 35 acres near the base of Casper Mountain. No injuries were reported and no structures or power lines were damaged.
"We do have a lot of fine, flashing fuels, so people need to be careful out there," said Craig Kidder, public information officer. "We had an extremely wet spring, so we have some carryover fuels, and the potential is definitely there [for a bigger fire]. The light winds helped us today."
Officials determined the fire was "accidental" and caused by a model rocket.
Officials from Casper Fire-EMS, Natrona County Fire District, Bureau of Land Management and U.S. Forest Service responded to the fire.