|
Location Map |
|
1863 Town of Matagorda at mouth of Colorado River, on mainland |
|
1883 First bathymetry survey of Matagorda Bay |
|
1915 Matagorda Bay has become more shallow because of Colorado River sediments |
|
1927 Colorado River Delta prograded half way across Matagorda Bay, forming a peninsula |
|
1958 Colorado River Delta prograded to barrier island, peninsula divides Matagorda Bay into East and West Bays |
We can document the growth of the Colorado River based on historic maps. These maps demonstrate that the Lower Colorado delta prograded 5 miles in 100 years, an average rate of more than 250 feet per year!