visitors were still welcome . `` But there 's going to be smoke , '' she said . `` Where there 's smoke , there 's fire . The vistas wo n't be as clear as even just a week ago . '' Still , she said , `` We do n't want to scare people into not coming . '' Rick Hoeninghausen , director of sales and marketing for Yellowstone National Park Lodges , said the fire was causing cancellations at the parks . But he said `` some tourists already in the park are are just changing their plans and working around it . '' He said the fire is more of an inconvenience than a danger . `` It 's a natural part of this environment . It 's part of the ecology and it 's a natural attraction for some people , '' Hoeninghausen said . The Arnica fire has closed Grand Loop Road , the main road through Yellowstone . Visitors wanting to get from one end of the wilderness area to the other will have to take a 280-mile detour . Yellowstone National Park has nine lodges and about 2,200 hotel rooms . At
-LRB- CNN -RRB- -- A wildfire in Yellowstone National Park has grown to 9,300 acres and closed a section of the main road through the park , but Yellowstone is still open and National Park Service officials said Monday there was no danger to travelers . Lightning started the fire on September 13 . Snow could fall this week at Yellowstone , which sprawls across parts of three states , and end the park 's fire season , officials said . National Park Service officials said the lightning-sparked wildfire started on September 13 , but was n't noticed until 10 days later in the Arnica Creek area east of Old Faithful , the geyser that is the park 's main attraction . Last week the fire increased in size and by this weekend had charred 6,500 acres . National Park Service spokeswoman Linda Miller said there was no danger for guests . `` We do n't anticipate it affecting any buildings , '' she said . Miller said Monday that 90 percent of the fire was in Wyoming , with the remainder in park areas in Idaho and Montana . Facilities at Yellowstone were open Monday , and Miller said