The topography to the west of Zainab Camp is treacherous to say the least; a giant pyroclastic flow oozes down from Red Mountain, making the going slow. Explore the general area cautiously, attempting to find a Heavy Sack south of this marker.
The Elder Scrolls Online: Morrowind eGuide The Atlas of Morrowind Grazelands
Pyroclastic Flow (Zainab Camp)