Richard John Chorley was known as a leading figure in quantitative geography in the late 20th Century and played an instrumental role in bringing the use of systems theory to geography. This set of 7 reissued works either edited by or written by Chorley offers a great wealth of scholarship on geography and geomorphology.

"Considered a landmark in California gold mining history. Public indignation against spoilage of rich agricultural land and clogging of watercourses by debris generated by hydraulic mining in the Sierra foothills led to the winning of a major battle against the miners ... [The author] examines the need to find a solution to the debris from the mining operations"--Bookdealer's description.