Layer Estimates:

Layer: track_points-point (ID:0)
Count: 3116
Extent:

XMin: -7831608.60598689
YMin: 5413436.67811487
XMax: -7830901.91646348
YMax: 5415558.52411186
Spatial Reference: 102100 (3857)

Layer: tracks-line (ID:1)
Count: 1
Extent:

XMin: -7831608.60598689
YMin: 5413436.67811487
XMax: -7830901.91646348
YMax: 5415558.52411186
Spatial Reference: 102100 (3857)