Layer Estimates:

Layer: Towns (ID:0)
Count: 315
Extent:

XMin: -19665751.3834
YMin: 6778203.4734
XMax: 19381722.8014
YMax: 11502204.0817
Spatial Reference: 102100 (3857)

Layer: Mile Markers (ID:1)
Count: 3410
Extent:

XMin: -18514994.471
YMin: 7403686.4666
XMax: -14635434.8605
YMax: 11133676.4044
Spatial Reference: 102100 (3857)

Layer: Major Roads (ID:2)
Count: 2867
Extent:

XMin: -19665305.9468
YMin: 6773154.531
XMax: -14472762.5957
YMax: 11525350.7613
Spatial Reference: 102100 (3857)

Layer: Trans-Alaska Pipeline (ID:3)
Count: 12
Extent:

XMin: -16780478.2302
YMin: 8635933.3982
XMax: -16154900.0196
YMax: 11152236.7531
Spatial Reference: 102100 (3857)