Layer Estimates:

Layer: BUS_STOPS_MBTA_PNTS (ID:0)
Count: 17920
Extent:

XMin: -7998288.81507218
YMin: 5097486.98725523
XMax: -7820698.20171667
YMax: 5281505.75496201
Spatial Reference: 102100 (3857)

Layer: ROUTES_MBTA_LINES (ID:1)
Count: 705
Extent:

XMin: -7998289.04115183
YMin: 5097839.23444465
XMax: -7861884.01196142
YMax: 5281561.07430774
Spatial Reference: 102100 (3857)