Explore Silverpine Forest

Based on the map above: Malden's Orchard (57, 10) The Shining Strand (55, 23) The Dead Field (45, 20) The Skittering Dark (37, 16) North Tide's Hollow (39, 28) Fenris Isle (66, 27) The Decrepit Ferry (57, 34) The Sepulcher (43, 41) Deep Elem Mine (55, 47) Olsen's Farthing (47, 53) Ambermill (61, 64) Shadowfang Keep (44, 68) Pyrewood Village (45, 73) The Greymane Wall (46, 83) Beren's Peril (61, 74)

Here is a map of where you explore everything for this achievement's criteria.

Here is a new TomTom macro for the zone, using PlaywowEU's post:

/way 45.41 82.23 The Battlefront
/way 45.05 67.95 Shadowfang Keep
/way 51.14 67.42 The Forsaken Front
/way 60.03 61.90 Ambermill
/way 56.38 46.15 Deep Elem Mine
/way 46.92 53.94 Olsen's Farthing
/way 44.97 41.66 The Sepulcher

/way 38.90 33.19 North Tide's Run
/way 38.56 29.20 North Tide's Beachhead
/way 35.78 14.19 The Skittering Dark
/way 44.66 21.64 Forsaken Rear Guard
/way 52.56 26.59 Valgan's Field
/way 56.88 33.53 The Decrepit Fields
/way 65.76 26.21 Fenris Isle

/way 57.75 90.98 Forsaken High Command