Here is an MONT-BLANC.IMG (All the Mont-Blanc massif) unlock file directly readable on a Garmin GPS and BaseCamp, IMG file of the Chamonix-Mont-Blanc valley and the Mont-Blanc massif. Map 1/25000.

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Does not show up in GPS; In basecamp works fine. Could you share the jnx from which this was made?

On my Etrex Touch 35 GPS, all my personal IMGs are displayed very well, I do not see why it is not displayed on your GPS, unless the MapID is not the right one at your place, the MapID is 29.
I am not at home and I can not load the JNX file.

After resetting the device and playing with the draw priority (eventually all priorities work), the map started to display but only on zoom levels 200m and smaller (Oregon 650). If you have the jnx, it would be great if you could also share that once back home. Thank you very much for sharing this map!

Hello,
I put my IMG (JNX) at a zoom of 200m since at the same time as my JNX or IMG (for France) I Topo France Pro V4, so above 200m I Topo France which appears, IMG (or JNX) but now I have the IMG I prefer this format because there is no need to patch the firmware and it's simpler, each IMG file is separated from others ( We activate them one by one) which is not the case with the JNX which forms a "packet of cards" which opens when you choose to activate the JNX card. (If I have 10 JNX cards in GPS, Open all).

(Translated from French in English with Google)

Hello,

You can see here

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page 3 and 4

or

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Look at German Forum. I made similar map(s) last year with the tool by AlexWhiter.
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