Layer Estimates:

Layer: Aids to Navigation (ID:0)
Count: 3712
Extent:

XMin: -8279520.09264758
YMin: 4886022.84629932
XMax: -7989483.46752729
YMax: 5112234.36144061
Spatial Reference: 102100 (3857)

Layer: Charted Submarine Cables (ID:1)
Count: 63
Extent:

XMin: -8277361.32163001
YMin: 4688302.89110477
XMax: -7709656.99842031
YMax: 5097579.27211194
Spatial Reference: 102100 (3857)

Layer: Anchorage Areas (ID:2)
Count: 167
Extent:

XMin: -8268870.09629426
YMin: 4923644.04191139
XMax: -7995667.46439143
YMax: 5096059.64047743
Spatial Reference: 102100 (3857)