San Ygnacio Creek is a small stream of water located in Webb County, Texas which runs through Laredo, Texas. The creek is formed 11 miles northwest of Laredo, Texas and runs southwest for 12 mi (19 km) until the creek connects to the Lake Casa Blanca. The terrain surrounding the creek is mostly clay. The vegetation surrounding the creek is mostly made up of mesquite, cacti, and grasses. San Ygnacio Creek does not cross any major highway.^[1]