Layer Estimates:

Layer: Cities (ID:0)
Count: 9
Extent:

XMin: -78.4012832515343
YMin: 39.9645030392444
XMax: -75.6660981888803
YMax: 41.4040461863535
Spatial Reference: 4269 (4269)

Layer: Rivers (ID:1)
Count: 2392
Extent:

XMin: -78.9216439422824
YMin: 39.5073488491713
XMax: -74.8670013174902
YMax: 42.8540739563463
Spatial Reference: 4269 (4269)

Layer: HUC (ID:2)
Count: 19
Extent:

XMin: -78.9166287996605
YMin: 39.5471919470412
XMax: -74.5887467678007
YMax: 42.9792109316721
Spatial Reference: 4269 (4269)