Layer Estimates:

Layer: ZebraMussels_Locks_USA_buffer10k_SumWIthin (ID:30)
Count: 234
Extent:

XMin: -13663578.3144116
YMin: 3077509.98771571
XMax: -8189015.82333674
YMax: 6066300.94424406
Spatial Reference: 102100 (3857)