More than a hundred campers recreating along the Colorado River have been evacuated, as more firefighters have joined the battle against a wildfire raging near the Colorado-Utah border.

More firefighters are expected to arrive to help against the Snyder Mesa fire, which claimed the lives of three firefighters over the weekend in what has been a deadly and frantic start to the fire season in the West.

The fire, which has so far burned through 30,163 acres and is 0 percent contained, has burned across the mesa tops and now sits on the edge of canyons. Firefighters are working to remove any burning materials that may roll down canyon walls, authorities said.

Across Colorado, firefighters are also battling blazes amid critical weather conditions. Authorities are warning that hot temperatures, low relative humidities and high winds can increase fire behavior. Meanwhile, northwesterly winds carried away some of the smoke, but southwest winds are expected again on Tuesday, so smoke may become visible again, authorities added.

All told, some 475 personnel are working to fight the fire, including 133 firefighters.

The Rocky Mountain Area Critical Incident Management Team 1 had arrived in the Western Slope on Sunday morning and set up incident command at the old Fruita Middle School building.

Ben Sanders, the group’s incident commander, said that the team would utilize the transition day to gather information and develop a fire suppression strategy.

Meanwhile, the Mesa County Sheriff’s Office extended road closures, including the Kokopelli Trail Road between Loam and Mack, while the 16 5/10 Road to Glade Park has been closed at Monument Road-Rim Rock Drive.

Sheriff deputies evacuated 123 campers from the Colorado riverbanks, while the Colorado Parks and Wildlife closed boat ramps at the James M. Robb-Fruita section and the Loma Boat Launch State Wildlife Area.

Authorities closed the boat ramp at the Fruita section of James M. Robb-Colorado River State Park to all downstream traffic and urged all boaters, rafters on the Colorado River to take an exit at or before the Fruita boat ramp.

“We cannot emphasize this enough: if you are floating the Colorado River, please end your trip at the Fruita boat ramp or a boat ramp farther upstream,” Northwest region manager Travis Black said in a news release. “We ask that everyone respect these closures, not only for your own safety but also to protect the firefighters and emergency responders working diligently on the ground.”

The Red Cross evacuation center is located at Grand Junction High School at 1400 N. 5th St. in Grand Junction. Both gymnasiums are being used to accommodate any overnight stays. Displaced residents can bring cats and dogs in kennels, authorities said.

Those who need assistance with large animals and livestock can coordinate with Kyle Carstens, the Mesa County Fairgrounds manager, at 970-773-1621.

Multiple wildfires are burning across Western and Southern Colorado, and several counties have issued their own fire bans. The Rocky Mountain National Park also imposed a fire ban starting Monday, and the federal Bureau of Land Management placed its district field offices under Stage 2 fire restrictions.

Under Stage 2, building fires are prohibited. So is smoking, unless in an enclosed area. Meanwhile, the state halted recreational activities, such as boating and kayaking, along the Colorado River from Fruita to the Utah border.

Federal authorities on Monday identified the three firefighters who died responding to the Knowles Fire at the Colorado-Utah border, one of whom once worked for a resort in Vail.

The U.S. Department of the Interior said the three wildland firefighters were assigned to the Rifle Helitack crew:

• Emily Barker, 38, of Clinton Township, Michigan, assigned to the U.S. Forest Service Rifle Helitack

• Nick Hutcherson, 27, of Glendale, Arizona, assigned to the U.S. Forest Service Kaibab National Forest

• Sydney Watson, 26, of Warrior, Alabama, assigned to U.S. Wildland Fire Service Rifle Helitack

Two additional firefighters were injured during the incident. They have been transported to metro Denver. As of Monday, they are in stable condition at the University of Colorado Anschutz, the medical campus in Aurora, where they are recovering.