Layer Estimates:

Layer: RivBasinOutline (ID:0)
Count: 22
Extent:

XMin: 997588.78514723
YMin: 1827938.14270824
XMax: 1120974.11121733
YMax: 1956642.88117304
Spatial Reference: 102671 (3435)

Layer: RiverbasinBoundaries (ID:1)
Count: 8
Extent:

XMin: 998560.135573335
YMin: 1827938.14270825
XMax: 1120974.109375
YMax: 1956640.81706092
Spatial Reference: 102671 (3435)