Mountain giants are the largest of all giants, with adult males averaging 24 feet in height and weighing around 16,000 pounds. Females are slightly smaller, standing 22 feet tall on the average and weighing around 14,000 pounds. They look very much like enormous, thickly built hill giants, and among humans they are often seen as little more than that. This is underselling the mountain giants, however, for though their crafting is primitive they have an intricately detailed social structure.

Mountain giants live in clans, led by the oldest male and female (or by their oldest offspring if the elders choose to delegate leadership due to advanced age). Each clan rules over and controls a group of 1d6 mountain peaks, generally spanning an area with a 5-6 mile diameter. They prefer peaks connected by high ridges so that they do not have to descend too far when walking their territory. Clan members who are mated establish households within the territory; unmarried members typically live with their parents until they are wed. The “lair” encounter figures above are for a single household, but if one household is attacked and the attackers subsequently retreat, upon their return they will usually find much of the rest of the clan waiting for them in ambush.

They wear armor made of wood held together with heavy rope, and wield giant clubs or staves carved from fully grown trees harvested from the lower reaches of their territory. If they live near storm giants, they may trade for better weapons (the second damage rating given above) but usually cannot afford storm giant armor.