GeoData @ UCB

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1. Global GIS : Aqueducts, canals, flumes, penstocks

1997. United States. National Imagery and Mapping Agency. This datalayer is a polyline coverage representing major roads worldwide and was published as part of the USGS Global GIS : global coverage databas... American Geological Institute.

2. Global GIS : Global 5-degree latitude/longitude grid lines (including geographically significant lines)

2003. American Geological Institute. This dataset is a polyline coverage representing a 5-degree by 5-degree global latitude and longitude grid, including geographically significant li... American Geological Institute.