San Marcos River

San Marcos River
Río San Marcos
The San Marcos River downstream from the San Marcos Springs
Map
Map of the San Marcos River
Location
CountryUnited States
StateTexas
Physical characteristics
SourceSan Marcos Springs
 • locationSan Marcos, Texas, U.S.
 • elevation575 ft (175 m)[1]
MouthGuadalupe River
 • location
Gonzales County, Texas, U.S. Hays County, Texas, U.S.
 • coordinates
29°29′27″N 97°28′16″W / 29.49095°N 97.47107°W / 29.49095; -97.47107[2]
Length75 mi (121 km)
Basin size522 sq mi (1,350 km2)
Discharge 
 • average236 cu ft/s (6.7 m3/s)

The San Marcos River rises from the San Marcos Springs, the location of the Meadows Center for Water and the Environment (formerly Aquarena Springs), in San Marcos, Texas. The springs are home to several threatened or endangered species, including the Texas blind salamander, fountain darter, and Texas wild rice. The river is a popular recreational area, and is frequented for tubing, canoeing, swimming, and fishing.

  1. ^ Google Earth elevation for GNIS coordinates.
  2. ^ "San Marcos River". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.