Layer Estimates:

Layer: all_gps (ID:0)
Count: 270
Extent:

XMin: -8738740.94615642
YMin: 4584304.43612184
XMax: -8736680.70117375
YMax: 4593498.56528353
Spatial Reference: 102100 (3857)

Layer: trails (ID:1)
Count: 81
Extent:

XMin: -8738623.20296341
YMin: 4591783.16917988
XMax: -8737439.87321157
YMax: 4593499.26699021
Spatial Reference: 102100 (3857)

Layer: areas (ID:2)
Count: 9
Extent:

XMin: -8738833.57809732
YMin: 4591681.38024301
XMax: -8737345.57105882
YMax: 4593630.10530294
Spatial Reference: 102100 (3857)