Layer Estimates:

Layer: sanfran_dwntn_small (ID:0)
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Extent:

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Layer: U.S. Cities (ID:1)
Count: 3161
Extent:

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Spatial Reference: 32610 (32610)

Layer: U.S. National Transportation Atlas Interstate Highways (ID:2)
Count: 234
Extent:

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Spatial Reference: 32610 (32610)

Layer: StateAlias (ID:3)
Count: 53
Extent:

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YMin: 214537.7305
XMax: 5662314.13930821
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Spatial Reference: 32610 (32610)