Layer Estimates:

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

XMin: 12356838.1158384
YMin: 3609792.84519009
XMax: 12356838.1158384
YMax: 3609792.84519009
Spatial Reference: 102100 (3857)

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

XMin: 10081768.8664189
YMin: 2845492.27832135
XMax: 13333569.0377091
YMax: 4478446.08417024
Spatial Reference: 102100 (3857)

Layer: Lake Poyang (ID:4)
Count: 1
Extent:

XMin: 12912308.5447202
YMin: 3357356.01177638
XMax: 12996825.2812706
YMax: 3472169.28993002
Spatial Reference: 102100 (3857)