Layer Estimates:

Layer: US_Counties (ID:0)
Count: 3143
Extent:

XMin: -178.2175984
YMin: 18.9217863000001
XMax: -66.9692709999999
YMax: 71.406235409
Spatial Reference: 4326 (4326)

Layer: US_Counties_Centroids (ID:1)
Count: 3143
Extent:

XMin: -166.917532885
YMin: 19.598443167
XMax: -67.6373333559999
YMax: 69.3095290750001
Spatial Reference: 4326 (4326)