A wildfire has scorched 89 acres of wetlands in Moab.

The fire is fully contained but still burning. Workers were busy Thursday solidifying a 50- to 100-foot perimeter around the fire to prevent wind from pushing it any further, said Heather O'Hanlon, fire information officer for the Bureau of Land Management.

Lightning ignited the Slough fire at about 3 p.m. Tuesday. Officials asked for a voluntary evacuation because of potential smoke inhalation issues, O'Hanlon said.

"The fire made some big runs, but the smoke was a bigger issue," she said.

The marshy wetland is making it difficult to get to the middle of the fire to knock it down, O'Hanlon said.

"We're going to probably have visible smoke and flames until it gets a significant amount of rain in the middle of it," O'Hanlon said.