The unusual reds of the Russian film used for this photograph distort the colors, making it appear different from most of the other photographs in this database, which were made using almost exclusively natural color films. This film enhances some of the snow-covered high elevations, the snow-covered frozen lakes, certain forested landscapes where clearcutting has occurred (showing these areas as white or red rectangles), and open bodies of water (delineating lakes and reservoirs). The main axis of volcanoes that extends through this part of Oregon can be traced from Crater Lake in the south to the snowcapped Three Sisters Volcanoes in the north, a distance of approximately 85 miles (140 kilometers). Part of the extensive, forested Cascade Range appears as the darker landscape west of this volcano zone. The broad valley east of Crater Lake is a portion of Klamath Marsh (formerly Lower Klamath Lake).