How do you treasure hunt?

[Denver_Max]

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[Xystic]

You gather the maps from level 40+ nodes in mining or botany I believe.

[ArkhamNative]

SE posted a Treasure Hunt Preview that gives a nice overview.

You need to be level 40 or higher DoL to get the maps. The level of the node probably determines the grade of the map. I got a Goatskin (Lv45) map from a Lv45 tree in Coerthas. From a Lv50 botanist spot I got a a boarskin and I think a toadskin. I still haven't gotten a Peisteskin map yet. You can only collect one map per 18 hours.

What confused me at first was locating the X. When you open/examine the decoded map from key items storage, it gives a little icon/image. If you open that you get the regular map but there's no "X" or circle. Once you realize the icon/image from the map is showing a piece of the zone, rather than some generic map icon, it's fairly easy to figure out where to dig.