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OPEN RESEARCH ARCHIVE · 1890—1945

Surveys and War

Geological, mineral, forestry, agricultural, and administrative surveys reveal how Jehol was measured, classified, and translated into a field of modern knowledge and resources.

2,490 images 110 source chapters

Thematic pathsSurveys, Resources, and Modern Knowledge

Thematic paths

Themes overlap: a single image may speak at once to architecture, roads, war, or everyday life.

Browse results

748 images

Rights and sources

Complete access,
with sources made clear.

The project director has confirmed that all 2,490 records are cleared for online display and are presented here in full. Permission to view an image online does not automatically grant permission to download or reuse the original. Each record retains its source, holding institution, and link to the originating collection. Record-level titles and descriptive notes remain in their cataloguing language to preserve provenance; English translations will be added progressively.