A 400' aerial view within the Upper Valley just northeast of Lovelock, Nevada.  Here one can see a giant dust storm (haboob) formed from thunderstorms & winds originating from the Reno area.  Having come from that way, I had driven through it as it was quite gusty, most of the dust picked up early on & especially arising from the dry Humboldt Sink.  As you can see it is crossing over mountains range & was a good mile in height.  It was relatively calm in the view, yet about two minutes later it arrived & turned everything into a gusty fog.

Directly below one can see an aviation arrow, part of the arrow & beacon airmail system.  Before our current GPS satellite & radar, airplane pilots who did transcontinental airmail routes at night would fly following these large cement arrows, often accompanied by beacons with a light.  While there were over 1500 of them across the country back in the day, about 100 of them remain today, decaying & forgotten like this one.  This one is along the San Francisco to Salt Lake City airway, to which the route was established on September 8, 1920 & discontinued on November 30, 1930.