Layer Estimates:

Layer: PittsburghCrimeJoin2015 (ID:0)
Count: 891
Extent:

XMin: -8914775.77122244
YMin: 4921325.55682803
XMax: -8890547.27046787
YMax: 4938516.21068843
Spatial Reference: 102100 (3857)

Layer: PittsburghSeriousViolentCrimesSummer2015Tracts (ID:1)
Count: 137
Extent:

XMin: -8916350.27575268
YMin: 4918098.93096903
XMax: -8890294.24773879
YMax: 4939419.79964269
Spatial Reference: 102100 (3857)

Layer: Neighborhoods (ID:2)
Count: 94
Extent:

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

Layer: UCRHierchycode (ID:3)
Count: 7