# Alpine Atlas

- **Event:** [GPT-6 Astra Hackathon SF](https://cerebralvalley.ai/e/openai-gpt-6-astra-sf)
- **When:** Tue, Sep 8 at 9:00 AM – 10:00 PM (PDT)
- **Where:** San Francisco, CA
- **Team:** [Olivia Xiaodan Meng](https://cerebralvalley.ai/u/oliviammeng)
- **GitHub:** https://github.com/oliviameng/alpine-atlas
- **Demo video:** https://www.loom.com/share/2aeb49305ee84ed38d3304aa39b7d558
- **Gallery:** https://cerebralvalley.ai/e/openai-gpt-6-astra-sf/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/openai-gpt-6-astra-sf/hackathon/gallery/9

Alpine Atlas turns Zermatt into an interactive 3D mountain explorer grounded in real Swiss terrain, aerial imagery, and dated visual evidence. Visitors explore the Matterhorn, changing sunlight, weather-model conditions, and the relationship between rock, glaciers, and water.

GPT-6 Astra powers an ask → explore → evidence workflow: it selects a viewpoint through constrained tool calls, compares two dated official camera images, and returns structured observations with image regions users can inspect. Camera observations, modeled conditions, and long-term glacier research stay visibly distinct; recorded Astra runs are explicitly labeled.

The custom Three.js landscape uses about one million terrain vertices, georeferenced textures, rock/snow shaders, geographic camera controls, and cinematic orbit. Glacier pins connect sourced change statistics with environmental context and Protect Our Winters resources. Built as a working browser experience during the hackathon.

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Markdown version of https://cerebralvalley.ai/e/openai-gpt-6-astra-sf/hackathon/gallery/9. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt