Layer Estimates:

Layer: IndexGrid_UTM83_24k (ID:0)
Count: 1602
Extent:

XMin: 221456.3173
YMin: 4081005.8603
XMax: 678253.2348
YMax: 4668382.4541
Spatial Reference: 26912 (26912)

Layer: IndexGrid_UTM83_30x60 (ID:1)
Count: 68
Extent:

XMin: 141617.7014
YMin: 4039407.704
XMax: 679062.9399
YMax: 4713044.0489
Spatial Reference: 26912 (26912)