Layer Estimates:

Layer: CountyBorders (ID:0)
Count: 50
Extent:

XMin: -7368665.98288795
YMin: 5367379.4749988
XMax: -6702439.96915368
YMax: 5986448.30589276
Spatial Reference: 102100 (3857)

Layer: Counties (ID:1)
Count: 18
Extent:

XMin: -7391046.42961664
YMin: 5371213.50431816
XMax: -6641467.158787
YMax: 5979316.87000061
Spatial Reference: 102100 (3857)