When a massive wildfire erupts inside one of America’s most secretive military regions, it’s almost inevitable that questions—and conspiracy theories—will follow. A fast-moving blaze known as the Quail Springs Fire is burning across tens of thousands of acres within the Nevada Test and Training Range, the sprawling military reservation that includes the infamous Area 51. While dramatic images of smoke rising from the restricted desert landscape have fueled widespread speculation online, officials have not linked the fire to weapons testing or any classified military activity, according to the Daily Mail. The Nevada Test and Training Range is one of the nation’s premier locations for aerial combat exercises, weapons testing and advanced defense research. Yet the enduring mystery surrounding Area 51 ensures that whenever smoke rises over the Nevada desert, questions are never far behind.