Changes made
to the Version 2.1 Maps (Oct 2009):
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Added Macintosh
support.
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Explicit level
definition instead of default. Most object types have been explicitly defined to
improve the map viewing experience both in Mapsource and your
small screen GPS receiver. Some objects (POIs, ditches,
intermittent streams) have been pushed down to reduce clutter,
whereas other objects (lakes, secondary roads, trails) have been
moved up such that you'll see them sooner.
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Shields added to
Interstate Highways, bug in base map software prevented this in
version 2.0.
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Intermittent streams
now shown with a long dashed line, similar to USGS maps.
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Included two minor
trail layers omitted in version 2.0.
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All* map segments are
now 30x30 minutes of arc, this reduces the segment count 75%.
*A few minor exceptions.
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Changes made
to the Version 2.0 Maps (June
2009):
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Completely reworked paved roads starting from a more modern dataset
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Road
shielding improved, many named and numbered roads now show the
number as a shield
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Major trail upgrade, many added, most are named, all visible at
wider zoom levels
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Most
POI's have been removed from the widest zoom level for improved
initial visibility and navigation
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Many
POI's added due to improved base map coding
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BLM
and Military areas each in a unique color
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Removed all sea level contour artifacts at cardinal Quad borders,
these were caused by artificial data in the USGS DEM database
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