Coconino National Forest fire managers are planning for a two-day prescribed burn northwest of Flagstaff. Officials plan to burn 510 acres in two blocks near the Lava River Cave about 14 miles northwest of Flagstaff. The Horseshoe-Wild Bill Project is slated to begin Wednesday through Thursday. There is expected to be a lot of smoke coming from this burn and it will be very visible from areas near Flagstaff. Smoke may impact Parks, Bellemont, Camp Navajo and I-40 Wednesday, then shift to Highway 180 on Thursday. There are no closures associated with this burn, but ADOT could close Highway 180 if smoke becomes too thick.