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Southeast Asia, Cagayan Valley

Valugan Boulder Beach, Basco, Batanes

Look-only volcanic cobbles

Mineral locality Documented siteProhibited, look only
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What you could find

Reported finds from this ground.

Crystals and mineralsCrystals and minerals

Also reported: photographic geology only: surf-rounded andesite and basalt boulders, vesicular volcanics.

Photos via Wikimedia Commons: Stephanie Clifford from Arlington, VA, USA (CC BY 2.0).

Why this spot

Rockhounding locality (observation only): Mt. Iraya eruption boulders polished by Pacific surf

Beach of andesitic boulders from Mt. Iraya eruptive deposits is thoroughly documented by travel press and guides

Before you go

Hazards noted for this site.

Heavy Pacific swell over unstable rounded bouldersTwisted-ankle terrain
no swimming

Keep exploring nearby

More spots in this area.

Check access and collecting rules for each site.