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The
Americas Highway basemap includes the United States, Alaska, Canada, Mexico,
and Central and South America, and covers an area from W180 to W30 Longitude,
S60 to N75 Latitude. Also included is a high-level worldwide map with political
boundaries and major cities. The best zoom range on the Americas Highway
basemap is the 20-mile scale, which is represented by the number three on
the ruler in the bottom left-hand corner of the display. The internal basemap
cannot be updated or upgraded.
The standard map coverage
includes:
- Oceans, rivers, and lakes (greater than 30 sq. miles)
- Principal cities and many smaller cities and towns
- Major interstates and principal highways
- Political boundaries (state and international borders)
A. United States
In addition to the standard map coverage, it also includes:
- Small lakes, major streams, and rivers
- Principal urban areas (including Alaska and Hawaii)
- Railroads
- National- and State-level roads
- Many local roads in or near urban areas
- More detailed coastline
- Airports
- A database of exits for the Federal Interstate highway system. This
includes many businesses within about ¼ mile of the exit, including:
restaurants, diesel/gas, hotels/lodging, overnight RV parking, dumps,
campgrounds, truckstops, medical facilities, shopping and outlet malls, ATMs,
and many more attractions.
B. Alaska
In addition to the standard map coverage, it also includes:
- National- and State-level roads, plus some local roads in or near urban areas
- Lakes greater than 5 square miles
- Small cities and towns
- Railroads
C. Canada
In addition to the standard map coverage, it also includes:
- Lakes greater than 5 square miles (Southern Canada)
- Lakes greater than 10 square miles (Central Canada)
- Railroads
D. Mexico, Central and South America
- Standard Map Coverage
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