Layer Estimates:

Layer: MBTA Commuter Rail Stations (ID:3)
Count: 381
Extent:

XMin: -8155644.10156341
YMin: 5096362.67103522
XMax: -7821051.97484659
YMax: 5284283.7206777
Spatial Reference: 102100 (3857)

Layer: MBTA Commuter Rail Lines (ID:4)
Count: 18
Extent:

XMin: -7998344.49067734
YMin: 5097313.87682863
XMax: -7818447.17014619
YMax: 5287600.81379744
Spatial Reference: 102100 (3857)