Layer Estimates:

Layer: Alaskan_Highways (ID:0)
Count: 613
Extent:

XMin: -18519737.9972947
YMin: 7371829.70718706
XMax: -14635606.0536085
YMax: 11504142.3526569
Spatial Reference: 102100 (3857)

Layer: Alaska_Boundary (ID:1)
Count: 1
Extent:

XMin: -19839092.3042881
YMin: 6725080.70545049
XMax: -14470669.4389288
YMax: 11542624.9160411
Spatial Reference: 102100 (3857)

Layer: Alaska_Counties (ID:2)
Count: 29
Extent:

XMin: -19839092.3042881
YMin: 6725080.70545049
XMax: -14470669.4389288
YMax: 11542624.9160411
Spatial Reference: 102100 (3857)