Layer Estimates:

Layer: SpotElevations1989 (ID:0)
Count: 67031
Extent:

XMin: -8670193.0112
YMin: 4469166.1596
XMax: -8597973.1417
YMax: 4517991.8124
Spatial Reference: 102100 (3857)

Layer: Contours1989 (ID:1)
Count: 124323
Extent:

XMin: -8670287.1953
YMin: 4469048.0917
XMax: -8597939.9767
YMax: 4518027.1051
Spatial Reference: 102100 (3857)