Layer Estimates:

Layer: Major Rivers (ID:0)
Count: 98
Extent:

XMin: -18355185.4040367
YMin: -4434848.56860446
XMax: 17896121.5981695
YMax: 11537826.6148301
Spatial Reference: 102100 (3857)

Layer: Major Lakes (ID:1)
Count: 37
Extent:

XMin: -13928664.4394235
YMin: -1874376.8956111
XMax: 12241247.3974204
YMax: 10169443.7434558
Spatial Reference: 102100 (3857)

Layer: Land Areas (ID:2)
Count: 8
Extent:

XMin: -20037507.0671618
YMin: -30240971.9583862
XMax: 20037507.0671618
YMax: 18418382.3293287
Spatial Reference: 102100 (3857)

Layer: 10 x 10 Degree Graticule (ID:3)
Count: 5292
Extent:

XMin: -20037507.8427882
YMin: -30240971.4583862
XMax: 20037507.8427882
YMax: 30240971.4583862
Spatial Reference: 102100 (3857)

Layer: Ocean Background (ID:4)
Count: 72
Extent:

XMin: -20037507.8427882
YMin: -30240971.4583862
XMax: 20037507.8427882
YMax: 30240971.4583862
Spatial Reference: 102100 (3857)