Layer Estimates:

Layer: Launch Sites (ID:0)
Count: 59
Extent:

XMin: -96.9508746798712
YMin: 42.4972560779058
XMax: -96.3996241978965
YMax: 44.3259253084234
Spatial Reference: 4326 (4326)

Layer: Big Sioux River (ID:1)
Count: 148
Extent:

XMin: -96.9349406332451
YMin: 43.1519492858154
XMax: -96.4140896303801
YMax: 44.3323295435398
Spatial Reference: 4326 (4326)