Layer Estimates:

Layer: Alaska_Contour (ID:0)
Count: 42727
Extent:

XMin: -20037507.0671618
YMin: 5321634.73850205
XMax: 20037507.0671618
YMax: 13144076.1385917
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)