the san bernard river is a river in texas. == course ==  san bernard river flows from a spring near new ulm, texastexas highways http://texashighways.com/travel/item/716-now-open-san-bernard-river to its mouth on the gulf of mexico, some  to the southeast of the source. its principal tributary is caney creek. along its course, it passes through portions of austin, brazoria, colorado, fort bend, matagorda and wharton counties. it passes alongside the attwater prairie chicken national wildlife refuge, which shelters one of the last populations of the critically endangered attwater's prairie-chicken, a ground-dwelling grouse of the coastal prairie ecosystem. the san bernard river is one of a small number of rivers in texas which empties directly into the gulf. its mouth was impeded in 2005 causing it to drain into the gulf intracoastal waterway, but was later corrected. == watershed == the san bernard drains approximately 1,850 square miles (4800&nbsp;kmÂ²) of land,http://www.h-gac.com/hgac/programs/clean+rivers+program/basin+profiles/brazos_colorado_coastal_basin+.htm and its basin area is home to approximately 87,000 people according to the 1990 census. the region was once the home of the karankawa indians. the river runs near west columbia, texas and along one side of camp karankawa, a camping facility of the boy scouts of america. the basin receives approximately  of rainfall annually. ==references==  ==external links==  * official website of f.o.r. san bernard *  
Drainage_basins_of_the_Gulf_of_Mexico Landforms_of_Brazoria_County,_Texas Rivers_of_Texas