Layer Estimates:

Layer: CONSTRAINT_Navigation_Channel_AND_Depth_less_than_22ft (ID:0)
Count: 56
Extent:

XMin: -13662337.0735584
YMin: 5707921.26617739
XMax: -13485487.7804223
YMax: 5734324.60841113
Spatial Reference: 102100 (3857)