If you are heading to the South Rim of the Grand Canyon, be aware there is a prescribed burn scheduled for today. National Park officials say the Long Jim Prescribed Fire will take place next to a developed area on the South Rim, east of South Entrance Road and south of Highway 64 East. The treatment area is over 28-hundred acres. Smoke from the burn will be most visible during ignition operations and will likely diminish after they are completed. Heavy smoke could impact traffic in the area. If you are heading to the area today, drive slow, turn your lights on and avoid stopping in areas where fire personnel are working.