Layer Estimates:

Layer: Three Gorges Dam (ID:0)
Count: 1
Extent:

XMin: -74030.0034999996
YMin: 3425421.0834
XMax: -74030.0034999996
YMax: 3425421.0834
Spatial Reference: 32650 (32650)

Layer: Yangtze River (ID:1)
Count: 1
Extent:

XMin: -1963727.6227
YMin: 2961684.6488
XMax: 746347.4751
YMax: 4126123.704
Spatial Reference: 32650 (32650)