Layer Estimates:

Layer: CountEvents_blockGroups_County_fall2016 (ID:0)
Count: 6130
Extent:

XMin: -9141899.42468388
YMin: 2820115.88143533
XMax: -8909412.08537202
YMax: 3119705.55171393
Spatial Reference: 102100 (3857)

Layer: BlockGroups_7Counties_2015 (ID:1)
Count: 4357
Extent:

XMin: -9235531.41572209
YMin: 2816167.48847181
XMax: -8908866.14164482
YMax: 3120180.06100908
Spatial Reference: 102100 (3857)

Layer: Outline_7counties (ID:2)
Count: 7
Extent:

XMin: -9238124.07415336
YMin: 2801775.39017195
XMax: -8902699.30796465
YMax: 3119842.55333805
Spatial Reference: 102100 (3857)