Lightroom 4.0 Lat/Long not accurate enough

Question

The latitude and longitude conversion in LR 4.0 map is not very accurate.  I plan to use this feature extensively and right now the accuracy is marginal.
I enclose a screen shot that shows the problem.    The first point is labelled: "Placed at right location in Google Earth".  This point was placed in GE
exactly on that spot.  Its coordinates are: 42.601830, -5.581437.  The second point is labelled "Same location converted from LR 4.0".  I placed that
point in LR 4.0 at the exact same location as the first point.  LR marked that position as: 42°36'7" N 5°34'53" W which I hand-converted to
42.60194444,  -5.58138888.  The second arrow to the NE of the first is placed at that location.  Close but no cigar.  That makes your photo placement
feature in LR 4.0 not accurate enough for many uses.  I have a KMZ that shows all this but I couldn't figure out how to submit it.
I'm glad to have the chance to use LR 4.0 which I like.  I use LR all day long and have for years.
Bob Consoli
[email protected]
[email protected]

Answer 1

This looks like an instance of the bug described here:
http://feedback.photoshop.com/photoshop_family/topics/non_urban_latitude_longitude_search_ wildly_inaccurate_in_lightroom_4_beta
Please visit that post and add your opinion and vote. 
Details:
It appears that LR 4 beta uses the Google Maps API to reverse geocode the original GPS location to the nearest named entity, such as a street address, and then uses the location of that entity to tag the photo, rather than the original GPS location.
In your example, this is what Google Maps shows when you search for 42.601830, -5.581437:
The green arrow is the exact location, and the red "A" is the nearest named entity, Plaza de San Marcos, 4.  When you search for that GPS location in LR 4, it shows the location of the named entity (the red "A" above), rather than the original GPS location: