Location

33°07′09″N 96°59′50″W

(Southeast of Denton)

Website
1940 Map of West Denton and Lake Dallas

Lake Dallas was the original lake southeast of Denton until later expanded into Lake Lewisville in 1955.    

The remains of the original Garza Dam are still visible from aerial photos, running  just south of the Lake Lewisville Toll Bridge.