One of a series of general interest publications on science topics, the booklet provides those interested in elevations and distances with a nontechnical introduction to the subject. The entire document consists of statistical charts depicting the nation's 50 largest cities, extreme and mean elevations, elevations of named summits over 14,000 feet above sea level, elevations of selected summits east of the Rocky Mountains, distances from extreme points to geographic centers, and lengths of United States boundaries. The elevations of features and distances between points in the United States were determined from surveys and topographic maps of the U.S. Geological Survey. (LH)