As a travel expert, I am committed to providing practical guides based only on real, verifiable data, as per your critical instruction.

The location “ogre” is not a real geographical place for which verifiable climate data, typical costs, or specific attractions exist. Therefore, I cannot generate a guide with the factual accuracy and integrity required by your “CRITICAL: Only use real, verifiable data. Never make up statistics, prices, or facts” directive.

To provide a helpful guide, I need a real location. If you can provide a specific, existing destination, I would be happy to create a detailed and factual winter backpacking guide for it.