The main resources of the Western Himalayan Resource Region are forests.

Forests:
- The Western Himalayan Resource Region is known for its rich forest resources. It is home to a variety of forests, including dense evergreen forests, coniferous forests, and alpine meadows.
- These forests provide a wide range of resources, including timber, fuelwood, medicinal plants, and various non-timber forest products. The timber from these forests is used for construction, furniture making, and other purposes.
- The forests also play a crucial role in maintaining the ecological balance of the region. They help in conserving the soil, regulating water flow, and providing habitat to numerous plant and animal species.
- The forests of the Western Himalayan Resource Region are also important from a biodiversity perspective. They are home to several endangered and endemic species, such as the Himalayan brown bear, snow leopard, and western tragopan.

Metallic minerals:
- While metallic minerals are found in various parts of the Himalayan region, they are not the main resources of the Western Himalayan Resource Region. The region is not known for its significant deposits of metallic minerals.

Carbonic minerals:
- Similar to metallic minerals, carbonic minerals are not the main resources of the Western Himalayan Resource Region. The region does not have significant deposits of carbonic minerals.

Atomic minerals:
- Atomic minerals, such as uranium and thorium, are also not the main resources of the Western Himalayan Resource Region. The region does not have significant deposits of atomic minerals.

In conclusion, the main resources of the Western Himalayan Resource Region are forests. These forests provide various resources and play a vital role in the ecological balance of the region.