LK Georgetown NR Georgetown is a man-made reservoir located on the North Fork San Gabriel River in Texas. The reservoir was constructed in 1979 for flood control, water supply, and recreation purposes. The hydrology of the reservoir is mainly dependent on rainfall, and it is managed by the Lower Colorado River Authority. The specific surface flow providers for the reservoir include Berry Creek, Brushy Creek, and the San Gabriel River. The snowpack providers for the reservoir are limited due to the fact that Texas does not receive significant snowfall. The primary agricultural use for the reservoir is for irrigation, while recreational activities include boating, fishing, and camping. The reservoir is also a popular spot for birdwatching and hiking.