In the fall of 2011, on a visit to Grand Teton National Park in Wyoming we stopped at Oxbow Bend, probably the most photogenic location in the park. While I was ambling about and aiming my camera to frame a shot, a deep mooing sound suddenly filled the entire valley. It was low, powerful, almost scary, unlike any other sound I had ever heard. Someone shouted “Moose!”, traffic came to a stop, people jumped out of their cars, and hundreds like me ran toward the bank of the Snake River with their cameras at the ready.
I went back to my car to switch to a longer zoom lens. By the time I could take another picture, the moose was already half way across.
Finally, it reached the other river bank, stood up, and walked out of sight.