Layer Estimates:

Layer: my_RefPolyLine (ID:0)
Count: 234
Extent:

XMin: -13028041.4378081
YMin: 5840160.74656123
XMax: -13015445.3187073
YMax: 5849014.3866695
Spatial Reference: 102100 (3857)
Vertical Spatial Reference: 105790 (3855)