Where: Japan · Asia · approx. 41.2, 140.54 (vicinity only)
Why this spot: Rockhounding locality: Tsugaru nishiki-ishi (brocade stone), agate, jasper and chalcedony beach pebbles
What turns up: agate, red jasper, chalcedony, nishiki-ishi, petrified wood
Access: Clean.
Casual beach picking of loose pebbles for personal amounts is customary and unregulated here; no official endorsement, so keep quantities small
Open in Mudlark Map →
Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.
Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.