Layer Estimates:

Layer: 10ft Contours (ID:5)
Count: 73295
Extent:

XMin: -9211949.3787
YMin: 4900546.0555
XMax: -9147931.8808
YMax: 4949778.5914
Spatial Reference: 102100 (3857)
Vertical Spatial Reference: 115700 (115700)