Layer Estimates:

Layer: MBTA_Stations (ID:6)
Count: 18
Extent:

XMin: -7992232.761892
YMin: 5198003.92868976
XMax: -7909842.72843778
YMax: 5214722.49021407
Spatial Reference: 102100 (3857)

Layer: MBTA_Roads (ID:0)
Count: 40635
Extent:

XMin: -8002047.05612954
YMin: 5183532.23406001
XMax: -7905213.93106412
YMax: 5221350.99019005
Spatial Reference: 102100 (3857)

Layer: MBTA (ID:1)
Count: 217
Extent:

XMin: -7992443.07753194
YMin: 5195614.29123216
XMax: -7909844.00562014
YMax: 5215105.05073515
Spatial Reference: 102100 (3857)

Layer: MBTA_Buildings (ID:3)
Count: 264227
Extent:

XMin: -8002090.62954654
YMin: 5183651.63418586
XMax: -7904734.00325756
YMax: 5221359.1932397
Spatial Reference: 102100 (3857)

Layer: MBTA_Towns (ID:4)
Count: 15
Extent:

XMin: -8002176.68001562
YMin: 5182619.61124885
XMax: -7904549.36334784
YMax: 5221454.27654421
Spatial Reference: 102100 (3857)