This data category requires a high level national map. To satisfy this category, the following minimum criteria must be met:

• Scale of 1:250,000 (1 cm = 2.5km).
• Markings of national roads
• National borders
• Marking of streams, rivers, lakes, mountains.
• Updated at least once a year.

Data Location

https://www.census.gov/geo/maps-data/data/tiger.html

Comments

There is a very substantial amount of geographic information openly provided by the US Government. The most relevant to this specific question is probably the US Census' TIGER (Topologically Integrated Geographic Encoding and Referencing) Database which provides vector data covering features such as "Boundaries, roads, address information, water features, and more". In addition to TIGER there is also substantial geographic data available from the US Geological Survery (USGS) at: https://www.usgs.gov/pubprod/. This includes topographic maps as well as aerial and satellite imagery (such as the global Landsat data).

Data Availability

• Y Openly licensed
• Y Is the data available for free
• Y Is the data machine readable
• Y Available in bulk
• Y Is the data provided on a timely and up to date basis
• Y Is data in digital form
• Y Publicly available
• Y Does the data exist
• Y Is the data available online

Details

Date the data became available	Unknown
Format of data	Shapefiles
Reviewer	anonymous
Submitters	anonymous
Last modified	Sun Apr 22 2012 12:25:10 GMT+0000 (UTC)