Monster Hardbone is a valuable material in Monster Hunter World (MHW) that is used to craft various weapons and armor. It can be obtained by carving certain monsters or as a reward for completing quests.
One of the best ways to get Monster Hardbone is to carve it from Uragaan, a large, rock-covered monster. Uragaan is found in the Wildspire Waste and can be hunted in High Rank or Master Rank quests. When carving Uragaan, focus on its head, back, and tail, as these areas have the highest chance of yielding Monster Hardbone.