Grand Canyon River Guide Scroll Map de Jones, Leslie Allen - 1962

Bountiful, UT: Western River Guides Association. Very Good. 1962. No Binding. From Herm Hoop's History of River Guides on the Colorado River System: "Les Jones, of Heber City, Utah, was an engineer and avid river runner. Jones began running rivers at the age of eleven. He built a kayak, running most rivers solo, and taking movies from a camera mounted on a football helmet. By the early 1950's Les began taping USGS maps together and filling in the missing contours. Les began using aerial photos, USGS maps and his own drawings and notes to trace and draw detailed maps on a scroll paper strips 7-10 inches wide. The maps were not waterproof and faded in sunlight, so they had to be protected from water and sunlight. Later his maps were copied onto waterproof mylar. Jones copied a river profile on the map above the river segments, labeling rapids and features on both. The maps contained rapid ratings, drawings of major rapids, Powell and other historic river camps, historic inscriptions and other detailed information. Les' maps were some of the first maps to contain conservation messages." This issue is of Jones's river scroll maps for the Grand Canyon. Dark blue mimeographed text and map. Includes an alert about the proposed Marble Canyon dam within the Grand Canyon. 7" wide paper scroll map is of unknown length when unrolled. In original plastic packaging with attached paper instructions on how to use the map. The plastic bag is rarely seen with the map; bag is milky with light soiling. Paper instruction label is faded on one side but bright on verso. Label itself is intact with wrinkling and edge wear. Some edge wear to the scroll map but inking remains strong. Few small tears visible. Fascinating piece of river-running history! ; Map .