Layer Estimates:

Layer: 1800 (ID:0)
Count: 4
Extent:

XMin: -10076188.824089
YMin: 1641783.06107073
XMax: -10073497.1326381
YMax: 1649572.93256978
Spatial Reference: 102100 (3857)

Layer: 1850 (ID:1)
Count: 3
Extent:

XMin: -10077077.1399493
YMin: 1641735.03253183
XMax: -10073503.4014742
YMax: 1649553.34760282
Spatial Reference: 102100 (3857)

Layer: 1900 (ID:2)
Count: 1
Extent:

XMin: -10078274.6907321
YMin: 1641766.89204365
XMax: -10073501.7301853
YMax: 1649937.83707765
Spatial Reference: 102100 (3857)

Layer: 1936 (ID:3)
Count: 1
Extent:

XMin: -10079173.4512368
YMin: 1641908.37921646
XMax: -10073617.4554512
YMax: 1650002.28621722
Spatial Reference: 102100 (3857)

Layer: 1950 (ID:4)
Count: 3
Extent:

XMin: -10087184.2330057
YMin: 1641684.81435423
XMax: -10071493.0649197
YMax: 1651142.91798975
Spatial Reference: 102100 (3857)

Layer: 1976 (ID:5)
Count: 1
Extent:

XMin: -10087538.6262662
YMin: 1633917.27407151
XMax: -10066445.4227464
YMax: 1653827.10673153
Spatial Reference: 102100 (3857)