Layer Estimates:

Layer: SalinasRiver (ID:0)
Count: 1
Extent:

XMin: -527743.195080929
YMin: 8102194.27954049
XMax: -65689.3094792664
YMax: 8666960.71562216
Spatial Reference: 102600 (102600)

Layer: NamedRivers (ID:1)
Count: 173
Extent:

XMin: -527143.386569262
YMin: 8073285.21596766
XMax: 20181.0617586523
YMax: 8666417.19144674
Spatial Reference: 102600 (102600)