Update: Grizzly Gulch Fire potentially caused by a cigarette By: MTN News and last updated 2021-07-15 20:30:50-04 HELENA â Update 3:40 p.m. - The Montana Department of Natural Resources and Conservation is reporting that the Grizzly Gulch Fire located on Mount Helena is approximately 35% contained. In an email to MTN, DNRC's Paige Cohn said, "Crew is feeling good about working through the day and containing the fire even more, but they are cognizant of weather conditions and the fact that fire behavior can change rapidly based on those conditions." In conjunction with the Helena Lewis and Clark National Forest Service and DNRC, The Lewis and Clark Sheriff's Office (LCSO) will take the lead on the investigation on how this fire started.