Layer Estimates:

Layer: Pittsburgh (ID:0)
Count: 1
Extent:

XMin: -8916333.38723451
YMin: 4918105.73637916
XMax: -8890289.03904046
YMax: 4939415.38831712
Spatial Reference: 102100 (3857)

Layer: Rivers (ID:1)
Count: 10
Extent:

XMin: -8911528.71807638
YMin: 4923233.90089428
XMax: -8892324.4585561
YMax: 4938401.60271001
Spatial Reference: 102100 (3857)

Layer: Parks (ID:2)
Count: 229
Extent:

XMin: -8915365.69037655
YMin: 4919168.11185542
XMax: -8890653.41840459
YMax: 4938024.94760179
Spatial Reference: 102100 (3857)

Layer: Neighborhoods (ID:3)
Count: 94
Extent:

XMin: -8916333.82210633
YMin: 4918104.29181377
XMax: -8890291.62559014
YMax: 4939408.43490107
Spatial Reference: 102100 (3857)

Layer: Employees Walking to Work (ID:4)
Count: 358
Extent:

XMin: -8916191.64985052
YMin: 4918625.1798126
XMax: -8890619.8840416
YMax: 4939022.15760467
Spatial Reference: 102100 (3857)