Layer Estimates:

Layer: Current Indian Reservations in the United States - 2019 (ID:0)
Count: 848
Extent:

XMin: -19395864.8783777
YMin: 2144424.3879688
XMax: -7462359.57005186
YMax: 11519609.2632327
Spatial Reference: 102100 (3857)

Layer: Tribal_Lands_Ceded_to_the_United_States_(Feature_Layer) (ID:1)
Count: 718
Extent:

XMin: -13886333.28
YMin: 2862376.1487
XMax: -8295409.8864
YMax: 6276448.494
Spatial Reference: 102100 (3857)