On May 23,1947, Messrs. Olcott, Augden, and Caywood of the Columbia River Basin Recreational Survey, National Park Service, were making a survey of the proposed Johnson Park Reservoir site in western Idaho. The site is about 18 miles east of Brownlee on the Snake River at an elevation of 5,900 feet. In the course of the survey a projectile point was found by Mr. Caywood in the immediate vicinity of the reservoir area. This point undoubtedly belongs to the Yuma category.

The geological associations of the point, as well as its characteristics of oblique flaking, shape, and size, are consistent with its identification as Yuma. Johnson Park was apparently a normal erosional canyon which has been partially filled with glacial detritus. The point was found in one of the small stream beds above what is thought to be the shoreline of an old lake.