Layer Estimates:

Layer: Denver Top Structure Contours (ID:1)
Count: 143
Extent:

XMin: 497026.6924
YMin: 4331190.422
XMax: 529142.1215
YMax: 4379627.3176
Spatial Reference: 26913 (26913)

Layer: Denver Base Structure Contours (ID:2)
Count: 85
Extent:

XMin: 494300.2264
YMin: 4331190.4292
XMax: 529170.7199
YMax: 4379612.0712
Spatial Reference: 26913 (26913)

Layer: Denver Isochore Contours (ID:3)
Count: 123
Extent:

XMin: 494343.023
YMin: 4331190.4232
XMax: 529164.3365
YMax: 4379617.4726
Spatial Reference: 26913 (26913)

Layer: Denver Netpay Contours (ID:4)
Count: 130
Extent:

XMin: 494419.7879
YMin: 4331190.4278
XMax: 529177.2257
YMax: 4379627.7675
Spatial Reference: 26913 (26913)