Layer Estimates:

Layer: NHDArea_Appalachia (ID:0)
Count: 8956
Extent:

XMin: -10140628.6993993
YMin: 3700672.13442732
XMax: -8199025.67293561
YMax: 5478436.05142905
Spatial Reference: 102100 (3857)

Layer: NHDLine_Appalachia (ID:1)
Count: 35771
Extent:

XMin: -10069117.8850059
YMin: 3761285.71814645
XMax: -8202634.51277699
YMax: 5448128.54989833
Spatial Reference: 102100 (3857)

Layer: NHDFlowline_Appalachia (ID:2)
Count: 2414381
Extent:

XMin: -10088914.1983531
YMin: 3711738.54781582
XMax: -8201665.96459924
YMax: 5480634.7023356
Spatial Reference: 102100 (3857)