The Seamless Digital Geological Map of Japan at 1:200,000 is a web-based geological map compiled by connecting the boundaries between geological map sheets at a scale of 1:200,000 that have been published by AIST, and by applying a unified legend for all of Japan.
In the digital era, this map is intended to serve as fundamental national land information, or a base registry, that can be widely used by society. We will continue to improve the map through rapid updates, enhanced display functions, and the provision of various types of data.

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  • Viewing the Seamless Geological Map

    You can view the entire Seamless Digital Geological Map of Japan at 1:200,000 directly in your web browser. The map can also be displayed in 3D mode for stereoscopic viewing.