Layer Estimates:

Layer: nl_urban_areas_2010_census (ID:0)
Count: 2312
Extent:

XMin: -100.638797322638
YMin: 23.4155335581273
XMax: -99.1659508808285
YMax: 27.2585390453407
Spatial Reference: GEOGCS["GCS_WGS_1984",DATUM["D_unknown",SPHEROID["WGS84",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

Layer: nl_city_blocks_2010_census (ID:1)
Count: 62933
Extent:

XMin: -100.638762727518
YMin: 23.4155547236716
XMax: -99.1659822204031
YMax: 27.2584362906024
Spatial Reference: GEOGCS["GCS_WGS_1984",DATUM["D_unknown",SPHEROID["WGS84",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

Layer: desc_cpv2010 (ID:2)
Count: 645