Below are some observations following mapping with FirstLook imagery around 
Ercis. 

Some parts of this imagery are greyed due to the presence of clouds. In these 
areas, it is harder to interpret the lines, to distinguish between roads and 
rivers.  At the same time, this is HighRes imagery. We should take advantage of 
this high resolution to trace more precisely the roads and rivers. We should 
also be carefull to distinguish between roads and rivers.
 
A few roads or rivers traced with FirsLook look misaligned compared to this 
Imagery when zooming in. When we try to join a new road, we have to realign the 
road.

When editing with JOSM, I suggest to zoom in up to the level 70-100 meter to 
trace more precisely. The scale is located in the upper-left corner of JOSM 
editor.


Pierre Béland
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