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.
The Rio Grande runs from the San Juan Mountains in Colorado through New Mexico, to El Paso, Texas, and along the border of Texas and Mexico, all the way to the Gulf of Mexico. It runs through the major cities of Santa Fe and Albuquerque in New Mexico. Full Answer >.