Layer Estimates:

Layer: Shield testing (ID:0)
Count: 657
Extent:

XMin: -13830044.6621
YMin: 3837826.2066
XMax: -12731558.955
YMax: 5161015.2452
Spatial Reference: 102100 (3857)

Layer: State Highway Postmile (One mile interval) (ID:1)
Count: 39956
Extent:

XMin: -13833099.5098
YMin: 3834973.8125
XMax: -12723621.0966
YMax: 5161799.1094
Spatial Reference: 102100 (3857)

Layer: State Highway Segments (ID:2)
Count: 5092
Extent:

XMin: -13833100.7867
YMin: 3834972.7183
XMax: -12723621.0966
YMax: 5161799.1094
Spatial Reference: 102100 (3857)