Layer Estimates:

Layer: capitals_web (ID:0)
Count: 51
Extent:

XMin: -17566683.1021
YMin: 2429747.6297
XMax: -7762276.1933
YMax: 8049395.4009
Spatial Reference: 102100 (3857)

Layer: rivers_web (ID:1)
Count: 55
Extent:

XMin: -18341377.4795
YMin: 2979920.6114
XMax: -7546517.3936
YMax: 11203512.893
Spatial Reference: 102100 (3857)

Layer: states_web (ID:2)
Count: 51
Extent:

XMin: -19838806.0413
YMin: 2146082.1892
XMax: -7455049.4483
YMax: 11542768.5181
Spatial Reference: 102100 (3857)