Layer Estimates:

Layer: Alaska National Preserves (ID:0)
Count: 10
Extent:

XMin: -18650281.3836456
YMin: 7680456.38331042
XMax: -15379123.993602
YMax: 10642923.8860089
Spatial Reference: 102100 (3857)

Layer: Alaska National Parks (ID:1)
Count: 8
Extent:

XMin: -17844113.8972074
YMin: 7940753.35425473
XMax: -15063389.7374096
YMax: 10644569.4329421
Spatial Reference: 102100 (3857)