Layer Estimates:

Layer: MBTABusStops (ID:0)
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Extent:

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Spatial Reference: 102100 (3857)

Layer: BostonStreets_ND (ID:1)
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Spatial Reference: 102100 (3857)

Layer: MBTABusRoutes (ID:2)
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Extent:

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Spatial Reference: 102100 (3857)

Layer: Boston_Neighborhoods (ID:3)
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Extent:

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Spatial Reference: 102100 (3857)

Layer: City_of_Boston_Boundary (ID:4)
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Extent:

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Spatial Reference: 102100 (3857)

Layer: SuffolkCounty_BlockGroups (ID:5)
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Extent:

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XMax: -7895087.80254042
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Spatial Reference: 102100 (3857)