Layer Estimates:

Layer: Cities (ID:0)
Count: 979
Extent:

XMin: -17608126.2915004
YMin: 2237819.33414081
XMax: -7656889.78387916
YMax: 9568529.59048987
Spatial Reference: 102100 (3857)

Layer: Highways (ID:1)
Count: 679
Extent:

XMin: -17611201.9173543
YMin: 2162833.40860835
XMax: -7469230.774399
YMax: 11173426.4141032
Spatial Reference: 102100 (3857)

Layer: States (ID:2)
Count: 52
Extent:

XMin: -19839095.5907467
YMin: 2145730.16022514
XMax: -5800977.61614244
YMax: 11542629.1728511
Spatial Reference: 102100 (3857)