RuneScape Harvestables - C
| Name | Skill | Location |
| Cave Eel | Fishing | Lumbridge |
| Charcoal Log | Woodcutting | |
| Clay | Mining | Port Khazard, Rellekka, Rimmington, Varrock |
| Coal | Mining | Al Kharid, Ardougne, Edgeville Dungeon, Haunted Mine, Karamja, Keldagrim, Rellekka |
| Cod | Fishing | Catherby |
| Copper | Mining | Edgeville Dungeon, Keldagrim, Port Khazard, Rellekka, Rimmington, Taverly, Varrock |
){kind=link}