Layer Estimates:

Layer: CountyBound_AnneArundelDetailed (ID:0)
Count: 1
Extent:

XMin: -8553812.7537
YMin: 4680603.8384
XMax: -8504198.0752
YMax: 4755696.9546
Spatial Reference: 102100 (3857)

Layer: AnneArundel_Mask (ID:1)
Count: 52
Extent:

XMin: -19942590.6657695
YMin: 2023662.51506938
XMax: 20012847.1793964
YMax: 11537127.333406
Spatial Reference: 102100 (3857)