Below is a complete list of Datacron locations on Hoth, but there ain't no damn map for some reason. First, go through a cave called the Terror Brigade Compound ...

Glacial Fissure area. Find the cave at 1031, 57. Once inside, follow it and jump up on the ledge near the satellite dish to reach the location in the image above. From here, follow the ledge around, ...

This datacron is found in the [Heroic Area] Dromund Kaas The Malignant Bog south of 'The Wall' transport shuttle. It's best to find this datacron while doing the [Heroic 2+] Shadow Spawn quest. The ...