Layer Estimates:

Layer: capitals (ID:0)
Count: 52
Extent:

XMin: -17566683.1020715
YMin: 2429747.62969479
XMax: -7762276.19329516
YMax: 8049395.40085501
Spatial Reference: 102100 (3857)

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

XMin: -18341377.4795437
YMin: 2979920.61135549
XMax: -7546517.39355458
YMax: 11203512.8929814
Spatial Reference: 102100 (3857)

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

XMin: -19838806.0412604
YMin: 2146082.18921886
XMax: -7455049.4483073
YMax: 11542768.518094
Spatial Reference: 102100 (3857)