South Texas Plains
Lake Casa Blanca International Texas State Park
Lake Casa Blanca International State Park Information:
This 371 acre park is located on the 1,650 surface acre Lake Casa Blanca, east of Laredo in Webb County, Texas. In 1990, the state acquired the park from the City of Laredo and Webb County. The park opened to the public in 1991. Fossils have been found in the park from extinct mammals that lived millions of years ago. Fossil exhibits are on display in the Park Headquarters. Wildlife includes Mexican ground squirrel, black-tailed jackrabbits, white-tailed deer, javelina, bobcat, raccoon, opossum and a variety of bats. Summer resident birds include Bullock’s and hood orioles, scissor-tailed and brown-crested flycatchers, and western kingbirds. Fall and spring migrations bring in a variety of warblers, vireos and flycatchers. Year round birds include green jays and great kiskadees. The lake provides habitat for great blue herons, snowy egrets, and great egrets year round. Winter brings American white pelicans and a variety of ducks. A variety of plants live in the South Texas Brush Country. Park activities include camping, picnicking, lake swimming, boating, mountain biking, geocaching, stargazing, birding and fishing. Park entrance and camping fees apply. The park is located east of Laredo. From U.S. 59, exit on Bob Bullock Loop (Loop 20), then turn on State Senator Judith Zaffirini Road.  Lake Casa Blanca International State Park Facilities Map
Lake Casa Blanca:
The 1,650 surface are lake’s dam was first constructed on Chacon Creek in 1946. The dam was damaged during the impoundment of the lake. Construction of the second dam began in 1947. The current lake was impounded in 1951. Maximum lake depth is 36 feet. Aquatic vegetation includes cattails and bulrushes. Predominant fish species include largemouth bass, hybrid striped bass, channel, blue and flathead catfish, crappie and carp. The lake is owned and operated by Web County and is used for recreational purposes. The only lake facilities are located at Lake Casa Blanca State Park. The lake is located on SH 59, 5 miles northeast of downtown Laredo, Texas.(956) 721-2560. From U.S. 59, go north on Bob Bullock Loop (Loop 20) to the park entrance.
TPWD Public Lake Access Facilities Map  
Lake Records 
Fish Stocking History
Paleontology (Fossil) Exhibits at Lake Casa Blanca International State Park:
Since the 1980s, Dr. Jim Westgate and his students from Lamar University have discovered the remains of 29 fossils from extinct mammal species that give information about what life was like in the park area millions of years ago. The tiny Epihippus gracilis fossil was the last of the Eocene four-toed horses. A fossil shows that the Tarsiers, a tiny relative of humans and apes now found only in Asia, lived in this area at one time. Another fossil was a Hippopotamus, a sea snake that might have been 20 feet long. There are also fossils of various sea creatures. The fossils indicate the area was once a coastal swamp with low lying forests and dense strands of Nypa mangrove trees. A display of the park’s fossils is located at headquarters.     
Lake Casa Blanca International State Park Directions:  
The park is located east of Laredo. From U.S. 59, exit on Bob Bullock Loop (Loop 20), then turn on State Senator Judith Zaffirini Road.