Layer Estimates:

Layer: U.S. Rivers (Generalized) (ID:0)
Count: 61
Extent:

XMin: -164.765830844609
YMin: 25.8455574212196
XMax: -67.7909802469857
YMax: 70.4097558618479
Spatial Reference: 4269 (4269)

Layer: U.S. Cities (ID:1)
Count: 3149
Extent:

XMin: -158.061856813207
YMin: 19.6931122057733
XMax: -67.986768734036
YMax: 64.8691042579709
Spatial Reference: 4269 (4269)

Layer: U.S. States (Generalized) (ID:2)
Count: 51
Extent:

XMin: -178.217598362366
YMin: 18.921786345087
XMax: -66.9692710360024
YMax: 71.4062353532711
Spatial Reference: 4269 (4269)