Layer Estimates:

Layer: BOUNDARY_ARC (ID:0)
Count: 1571
Extent:

XMin: -8185695.20354613
YMin: 5038742.68623648
XMax: -7773582.09077746
YMax: 5294994.53408165
Spatial Reference: 102100 (3857)

Layer: BOUNDARY_POLY (ID:1)
Count: 351
Extent:

XMin: -8185695.20354613
YMin: 5038742.68623648
XMax: -7773582.09077746
YMax: 5294994.53408165
Spatial Reference: 102100 (3857)