Layer Estimates:

Layer: Major_Cities_that_Use_Colorado_River_Water (ID:0)
Count: 20
Extent:

XMin: -13162826.0000497
YMin: 3792452.00001753
XMax: -11645036.0000139
YMax: 5033009.9999826
Spatial Reference: 102100 (3857)

Layer: USA_1990_2000_Population_Changes (ID:1)
Count: 120
Extent:

XMin: -13311530.8323019
YMin: 3675963.55967968
XMax: -11359216.1656498
YMax: 5569218.08739347
Spatial Reference: 102100 (3857)

Layer: CountyPopulation2014 (ID:2)
Count: 121
Extent:

XMin: -13660629.7360075
YMin: 3476829.99687332
XMax: -11275066.4484059
YMax: 5676160.29404811
Spatial Reference: 102100 (3857)

Layer: CountyPopulation2010 (ID:3)
Count: 121
Extent:

XMin: -13660629.7360075
YMin: 3476829.99687332
XMax: -11275066.4484059
YMax: 5676160.29404811
Spatial Reference: 102100 (3857)

Layer: counties (ID:4)
Count: 3142
Extent:

XMin: -20037507.0671792
YMin: 1005527.34743611
XMax: 20037507.0671792
YMax: 15080604.685286
Spatial Reference: 102100 (3857)