Layer Estimates:

Layer: Campbell Hall - Digitized Data (ID:0)
Count: 2
Extent:

XMin: -8739093.64581068
YMin: 4584865.78126687
XMax: -8738939.50882493
YMax: 4584975.48170777
Spatial Reference: 102100 (3857)

Layer: Campbell Hall - Field Data Collection (ID:1)
Count: 3
Extent:

XMin: -8739087.859
YMin: 4584872.5026
XMax: -8738940.4124
YMax: 4584958.1441
Spatial Reference: 102100 (3857)