Layer Estimates:

Layer: Weighted Density Contours (ID:4)
Count: 40
Extent:

XMin: -8908673.68164746
YMin: 4922269.32491865
XMax: -8895982.63806046
YMax: 4936851.40594779
Spatial Reference: 102100 (3857)

Layer: Allegheny County Census Tracts (ID:5)
Count: 1061
Extent:

XMin: -8945723.94216758
YMin: 4894216.69700586
XMax: -8870936.47556994
YMax: 4964513.41979762
Spatial Reference: 102100 (3857)