( CNN ) -- About 300 Arizona homes and businesses were evacuated as a 4,830-acre wildfire raged near Slide Rock State Park outside the retirement and tourist destination of Sedona , authorities said Thursday . In all , a two- to three-mile area that included a forest service lookout tower was emptied of people , from Slide Rock State Park to the Sterling Springs Hatchery , said the online Incident Information System , or InciWeb . About 840 personnel , including 15 hotshot crews and three air tankers , have been battling the blaze , which was 0 % contained late afternoon Thursday . `` As the day warms , firefighters expect increased fire behavior , with the most active portion of the fire toward the northwest to Harding Point . Heavy smoke is likely again in the greater Flagstaff area , '' authorities said . The fire originated Tuesday in an area near Slide Rock State Park , four miles north of Sedona , authorities said . The cause of the fire is under investigation , authorities said , adding that it was probably started by a person . In all , about 3,200 residents in Coconino County were given pre-evacuation notices . Frank Garrison owns 20 rental cabins in the area . `` It 's my home , my property , my livelihood , '' he told CNN affiliate KTVK on Wednesday . `` Everything . '' He had packed his pickup and was in a line of cars of people leaving the area . The Butterfly Garden Inn said it was able to get all staff members and guests out . `` We are praying for the safety of our beautiful inn and for the brave firefighters working tirelessly to save it , '' the inn said on its Facebook page . `` Please help us pray for a miracle . '' Connor Packard stood atop his mother-in-law 's roof , spraying water from a garden hose . `` Just spraying down the roof and the yard just in case any embers float down , '' he told KTVK . `` There 's already a bunch of ash floating down . '' The Slide Fire , as it has been named , is burning an area called Oak Creek Canyon . The hilly terrain and 30-mph wind gusts Wednesday made it difficult for firefighters . The area is popular in the summer with tourists looking to escape the heat . Fodor 's Travel named it one of the top 10 state parks in the United States . The state park is a 43-acre historic apple farm , according to the Slide Rock website . No one has been injured because of the fire , the forest service said . By Wednesday , its smoke had drifted into Utah , 150 miles away . What to know about wildfires . 17-year-old appears in juvenile court in California wildfires case . CNN 's Steve Almasy , Shawn Nottingham and Ana Cabrera contributed to this report .
NEW : About 300 homes and businesses are evacuated in near the state park . Hundreds of homes , resort hotels are threatened . Firefighters expect ` ` ' fire brigade '' in area .