Layer Estimates:

Layer: Roads_1500m_Buffer (ID:0)
Count: 12789
Extent:

XMin: -11718000.5529246
YMin: 4824339.49759129
XMax: -11483961.9994632
YMax: 5111242.46750274
Spatial Reference: 102100 (3857)
Vertical Spatial Reference: 6647 (6647)

Layer: Major_Roads_800_Buffer (ID:1)
Count: 1
Extent:

XMin: -11717061.607793
YMin: 4825269.97794168
XMax: -11484917.2044074
YMax: 5110302.91485505
Spatial Reference: 102100 (3857)
Vertical Spatial Reference: 6647 (6647)

Layer: Cities_8km_Buffer (ID:2)
Count: 35
Extent:

XMin: -11705411.4535664
YMin: 4854532.12784983
XMax: -11547092.1241764
YMax: 5005435.16451212
Spatial Reference: 102100 (3857)
Vertical Spatial Reference: 6647 (6647)