Last week my family and I went for a long road trip to Montana, USA. While on our way to Glacier National Park we stopped our car at a curved area. Looking down below I saw a beautiful river flowing in between dense forests which couldn't be seen from the highway. I noticed a railway line alongside the river. Within a minute we were lucky to see a freight train appeared on the line entering a tunnel. My camera was in my hand and I didn't waste time to capture a few shots. This is one of them.