Bridger-Teton National Forest officials are asking visitors to use extra caution after fire crews had to fight five human-caused fires in the last week.

All the fires occurred since Wednesday. Fire officials think all five resulted from abandoned warming fires.

The Long Hollow Fire was discovered Wednesday near Straight Creek. Firefighters were able to put out the tenth-acre blaze later that day.

The Monument Fire was discovered in the Hoback area Friday. Firefighters extinguished it Saturday before it grew more than a tenth of an acre.

The Kerr Fire, also a tenth of an acre, was discovered near Ramshorn Peak on Saturday. Crews are fighting the fire.

Firefighters are also suppressing the Jack Fire, discovered Saturday in the Gros Ventre Wilderness near the Jack Pine Summer Home area, and the Shoal Creek Fire, in the Gros Ventre Wilderness near the Jack Fire. Both fires are a tenth of an acre.

Bridger-Teton fire personnel said warming fires do not necessarily have a rock ring, nor are they typically built on a cleared surface free from debris and burnable materials.

“The coolness of the morning or the dampness on the ground may cause some visitors to think that leaving these fires unattended poses little or no threat to the forest, but the opposite is true,” fire prevention technician Nan Stinson said. “As we’ve seen with these fires in the last five days on the Big Piney District, these fires are back in there a ways to where we can’t get our fire engines in to put them out.”

The fire danger in Bridger-Teton is listed as “moderate,” the second of five ratings from “low” to “extreme.” To report a wildfire, call 911 or call the Teton Interagency Dispatch Center at 739-3630. For information on the fires burning in the forest, visit www.tetonfires.com.