A slip (also sometimes called a scoop, scraper, or road scraper) was the common implement for moving dirt when doing such things as digging ponds or making fills where large volumes of dirt were needed.
RIO GRANDE. The Rio Grande rises in Rio Grande National Forest, San Juan County, Colorado (at 37Â°47' N, 107Â°32' W), as a clear, spring and snow-fed mountain stream 12,000 feet above sea level. Its origin is at the Continental Divide in the San Juan Mountains.
Rio Grande. Rio Grande, Spanish RÃ­o Grande del Norte or (in Mexico) RÃ­o Bravo or RÃ­o Bravo del Norte , fifth longest river of North America, and the 20th longest in the world, forming the border between the U.S. state of Texas and Mexico.