Gov. John Hickenlooper said the state was allocating many resources for the fires in the states.
Voos said Highway 230 remains open, however visibility could be obscured at times due to smoke.
Colorado's largest blaze also kept burning in the San Juan National Forest, which has been closed to the public to try to prevent additional fires.
Some 2,150 dwellings remained under evacuation orders and residents of another 500 homes were advised they, too, might have to flee at a moment's notice, La Plata County officials said.
The fire is zero percent contained.
The order is effective Friday for the Mountainair and Sandia districts, and in place June 22 for the Mount Taylor district.
The fire has not destroyed any homes.
The Burro Fire in the Bear Creek drainage of the Dolores Valley continued to grow on Tuesday, but is not threatening any structure.
Approximately 50 firefighters are now on the ground, with 100 inbound. They have requested hand crews and a "big air attack", saying they hope to keep the fire from jumping the well-established fire break around Mesa Cortina and Wildernest.
Images from the scene showed thick smoke pouring into the air and aerial firefighting resources trying to tamp down the blaze.
Though thunderstorms in the next few days could bring much-needed moisture to the area, officials are anxious the storm could bring lightning and gusty winds that lead to unpredictable fire behavior. The Ute Fire has burned 36,740 acres.
The cause of the Fire is unknown and is under investigation.
Evacuees are being asked by Albany County to email firstname.lastname@example.org with accurate contact information so that consistent information sharing can be maintained.
Far across the state about 95 km west of Denver, a newer blaze called the Buffalo Mountain fire prompted the mandatory evacuation of 1,380 homes after blackening a comparatively small area of just 100 acres, Summit County officials said.
The Red Cross was opening a shelter for displaced residents at Frisco Elementary School, 800 8th Avenue in Frisco at 8 p.m. Tuesday. Currently, there are 510 properties included in the evacuation area, with 393 homes.
Roads in the area of the evacuation zone have been shut down.
The fire is being fought indirectly until it reaches flatter terrain where firefighters can safely engage it head-on.
A host of recreational trails near the fire have been closed indefinitely. Those concerned about pets can contact Summit County Animal Control at (970) 668-4143.