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.
Best Answer: The Rio Grande forms all of the border between Texas and Mexico, which means it forms part of the border between the USA and Mexico. There are 2 rivers that forms the southern border of the united states. - The Rio Grande (RÃ­o Bravo del Norte): from its mouth on the Gulf of Mexico a distance of 1,254 miles (2,019 km) to a point just upstream of El Paso, and Ciudad JuÃ¡rez. -The Colorado River Delta, that covers 24 miles (38 km).