Layer Estimates:

Layer: City_Features (ID:0)
Count: 7
Extent:

XMin: -20037507.8427882
YMin: -30240971.4583861
XMax: 20037507.8427882
YMax: 30240971.4583861
Spatial Reference: 102100 (3857)

Layer: NorthfieldInsulae (ID:1)
Count: 143
Extent:

XMin: -10372155.943
YMin: 5537817.5569
XMax: -10370769.943
YMax: 5538994.5569
Spatial Reference: 102100 (3857)

Layer: CityExtent (ID:2)
Count: 1
Extent:

XMin: -10372360.2003
YMin: 5537794.5569
XMax: -10370859.757
YMax: 5538907.8184
Spatial Reference: 102100 (3857)