Disappearing mountains

Taken on 29 August 2013, when friend Sandy and I went off for a day in the Rocky Mountains. Driving west from Calgary, we soon saw that the mountains (eastern edge of the Rocky Mountains) were looking rather hazy. Before too long, we found ourselves driving through very low cloud and the mountains, there one moment, had partly or completely disappeared the next. This went on for a long time and I began to wonder if we would even be able to see the beautiful mountains the further west we went. Eventually, the clouds lifted and the sun shone. Later in the day, the grey clouds started drifting in and we did get some rain, but we had already seen the "best" things, so we were happy.