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29 Apr 2014
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I wonder how good is OSM topo, comparing to Soviet maps. Anyone has compared the two?
e.g. East of Atar on OSM
Same area render in Base Camp:
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30 Apr 2014
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Nice map Janusz, enjoyed scanning that as an alternative to Google.
Only problem is I haven't got enough hair left to pull out trying to make it work on my Nuvi. Perhaps that's a good thing.
Depends what you're doing off course, but in the desert away from main pistes I'd rely on paper with GPS of course. And for me IGNs @ 1m do the job.
Or 200k if needed - all digitised as rasters on CD (below).
The IGN 200s are works of art (below). I would not describe Soviet maps like that.
Ch
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2 May 2014
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iPad and MotionX let you use different Mapsources like Google Road, Google Satellite, Google Hybrid View - what you can download before you go.
In Mauretania you can use it offline. You can too use other Mapsources like Openstreetmaps, Bing Road, Satellite. You can switch these downloaded Mapsources anytime, to look what gives you the best and most detailed overview.
We use this solution for our transafrica, very powerful! Specially between Cameroon till Angola there is no alternative to satellite hybrid view - this was very helpful.

Also to find a "quiet" spot for a wildcamp, the satellite view is the best you can get.
Offroad Navigation with MotionX
4x4tripping: Offroad Navigation mit MotionX HD (iPad)
MotionX the "custom Map" option
4x4tripping: Offroad Navigation mit MotionX - die neue "Custom Maps" Funktion
MotionX is fine for offroad navigation and orientation. You can see where you are, see where you was (trackrecording). It has no point to point Navigation, so it cant tell you when you had to go left or right.
For this you better use a road navigation app like TomTom Marocco. It covers too Mauretania and brings you a well sorted POI Database like ATMs, Fuel stations, Police who can be handy too.
The solution like showed here, just works on Apples iPhone or iPad. You will find a way with Android, but never so easy like showed here..
Surfy
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12 May 2014
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Thanks everyone.
A few questions:
- Chris, what is a source for the digitized IGNs?
- what is source for the Russian maps online?
- how do I get the topo OSM download?
I came across the following 1:1,000,000 Operational Navigation Chart from u of texas archive:
http://www.lib.utexas.edu/maps/onc/t...322829_j_2.jpg
On this map there appears to be a piste from Oudane south east to the road near Tichit. I have seen GPS coordinates somewhere that seem to follow this roughly (can't remember where I saw them). Is anyone aware of such a route?
Less than 6 months to departure!!! Getting excited!
Rick
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12 May 2014
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Quote:
- Chris, what is a source for the digitized IGNs?
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Darrs in Munich last time I looked, or bootleg copies of Darrs
Quote:
- what is source for the Russian maps online?
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Strictly speaking 'Soviet'. I thought Touratech bought them all off a guy called Quo Vadis and called them TTQV. Also available as bootleg.
Maps of the Sahara | Sahara Overland
Quote:
- how do I get the topo OSM download?
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Start somewhere here I suppose. Then it gets complicated.
If you're scanning Texas archives you may find US TPC (1:500k scale) better than ONC 1 millions.
But both ONC/TPC are pilot maps, not so useful for ground info (anything that looks like a track becomes a piste without differentiation).
Don't know of that route, maybe a Paris-Dakar stage or a route in Cyril Ribas' book - Mauritanie au GPS. Looks quite duney up north.
Ch
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12 May 2014
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@rkubin999
My Italian friend explained to me that is possible direct route from Ouadane over the dunes SE to Tichit. No piste at all! You must be very well supplied and experienced driver. You can expect to find deep and soft sand not driving more than few km's per such day. I can ask him in how many day's he passed through and his recomended supplies.
Piste heading East just before Ouadane, I think goes around the Guelb er Richat. Locals said that this piste is used by "Societe" guys from nearby mine ???
Thomas
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