Layer Estimates:

Layer: Cities (ID:0)
Count: 3564
Extent:

XMin: -17608126.2915004
YMin: 2237819.33414081
XMax: -5000113.04621336
YMax: 9568529.59048987
Spatial Reference: 102100 (3857)

Layer: Counties (ID:1)
Count: 3141
Extent:

XMin: -19839095.5907467
YMin: 2145730.16022514
XMax: -7380426.96701304
YMax: 11542629.1728511
Spatial Reference: 102100 (3857)

Layer: Highways (ID:2)
Count: 681
Extent:

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

Layer: States (ID:3)
Count: 54
Extent:

XMin: -19839095.5907467
YMin: 2145730.16022514
XMax: -7454984.99714029
YMax: 11542629.1728511
Spatial Reference: 102100 (3857)