Josiah Edward Spurr (1870-1950) was born into a family of fishermen in Gloucester, Massachusetts. He received his Master's degree in geology from Harvard University in 1894 and was appointed to the United States Geological Survey (USGS) the same year. In 1896, Spurr was sent, with two other USGS geologists, to survey the Alaskan interior. This historically important expedition was followed in 1898 by an equally important journey down the 702 mile-long Kuskokwim River, surveying previously uncharted mountains, lakes, volcanoes and glaciers.
Consulting geologist and surveyor Franklin Mac Murphy was born on December 27, 1898 in Wheaton, Minnesota. He studied at Columbia University, the University of Arizona, and the University of California, Los Angeles, completing his graduate studies in 1930 at the California Institute of Technology, in Pasadena, California.
The view of three unidentified gentlemen standing by a waterfall that splashes into the Colorado River located in the rocky Grand Canyon. Located in Arizona, the Grand Canyon was carved by erosion from the Colorado River, which resultantly left the canyon an estimated 277 miles long, a mile deep, and up to 18 miles wide. Today, about two billion years of geological history has been exposed at the canyon.