Layer Estimates:

Layer: main.hydrografia__srodki_odcinkow_2km (ID:0)
Count: 126661
Extent:

XMin: 1547158.29768105
YMin: 6269944.33202179
XMax: 2740771.15054009
YMax: 7329868.05369336
Spatial Reference: 102100 (3857)