Drive north from Crested Butte on Forest Road 137 about 18 miles to ghost town of Gothic, then continue another 6 to 8 miles along the east fork of the Crystal River. Good sites along the route.
A photographer's workshop group had commandeered the place I had planned to shoot for this day's sunset, so I went to plan B. It worked out better and gave me a different scene than 17 other people were getting.
Perched on the edge of this stream, straining for an extra inch to get the angle I wanted for the composition, I was also aware that the light was changing rapidly and any minute I might lose the color that was washing the clouds overhead. With my 100 ISO film I didn't have a lot of leeway with the exposure and there was a lot of dynamic range to deal with.