Two Teton Interagency Fire engine crews doused a half-acre fire on the northern boundary of the National Elk Refuge Thursday evening. Fortunately a wetting rain Thursday evening helped crewscontain the fire shortly after 10:00 pm. Teton Interagency Fire manager Mack McFarland described the fire behavior as more active than expected for this time of year. Fire investigators are following a lead that the source of ignition may have been fireworks discharged from the Gros Ventre Campground that lies just across the Gros Ventre River in Grand Teton National Park. This marks the first significant fire incident for the 2013 season, and serves as a reminder that vegetation is becoming much dryer across the greater Jackson Hole area as summer temperatures increase and humidity decreases.