The 20-acre blaze on Mount Charleston sparked by an illegal campfire was expected to be mostly contained Sunday night, according to the Bureau of Land Management.
Firefighters said that 95 percent of the fire would be under control by 9 p.m., allowing firefighting resources to be released to other assignments.
Thirty-five personnel will remain assigned to the Mount Charleston fire to continue suppression operations and patrolling.
The Bureau of Land Management said that although fire activity has greatly diminished, extremely dry conditions remain a concern.
In Moapa, firefighters have contained 50 percent of the 601-acre fire. They expect to have the blaze completely contained this week.
Most trail heads and campgrounds on Mount Charleston have reopened, but the following sites remain closed: Cathedral picnic area and trail head; Trail Canyon trail head; Old Ski Tow trail head; Mary Jane Falls trail head; Echo trail head; and all associated parking lots and facilities in and around the Cathedral fire.
Visitors are being asked to be aware of firefighting operations and to yield to all emergency vehicles.
Fire restrictions, such as the total ban on all fireworks, are being strictly enforced on all federal lands.
Both blazes began Thursday.