Layer Estimates:

Layer: BlockGroupPoints (ID:0)
Count: 517
Extent:

XMin: -19182363.8989315
YMin: 6907400.11485085
XMax: -14491643.7895445
YMax: 11494154.7050691
Spatial Reference: 102100 (3857)

Layer: Alaska_Blockgroups (ID:1)
Count: 517
Extent:

XMin: -19839092.3042881
YMin: 6726504.96700419
XMax: -14472840.2513436
YMax: 11537127.3335475
Spatial Reference: 102100 (3857)

Layer: Alaska_Boundary (ID:2)
Count: 1
Extent:

XMin: -19839092.3042881
YMin: 6725080.70545049
XMax: -14470669.4389288
YMax: 11542624.9160411
Spatial Reference: 102100 (3857)