Layer Estimates:

Layer: perimeters (ID:2)
Count: 1361
Extent:

XMin: -18137970.0520726
YMin: 2003052.90263034
XMax: -7207883.8651494
YMax: 10469658.9492249
Spatial Reference: 102100 (3857)

Layer: gridsquares (ID:3)
Count: 41188
Extent:

XMin: -18137970.0520726
YMin: 2003052.90263034
XMax: -7207883.8651494
YMax: 10469658.9492248
Spatial Reference: 102100 (3857)