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.
Rivers. There are 3,700 named streams and fifteen major rivers in the state of Texas. Rio Grande is the largest river 1,896 miles long. Colorado, Pecos, Brazos, Lavaca, Leon, San Antonio, Angelina, Concho and the Red River are the major rivers in Texas.