Archaeologists discovered hundreds of stone hammers at a Spanish copper mine that likely traded its metal with Scandinavia
· earth.com · popularity 26/100 · 1 similar story today · Anthropology & Archaeology (Discovery & Research)

Read the original at earth.com →
Summary
Excavations at Las Minillas in Badajoz found 735 grooved stone hammers and 17 radiocarbon dates, and 11 Nordic bronzes fit its copper.
Found in: Earth.com. Rating basis: 1 other outlets; outlet tier 2 (unlisted); 1 feeds; feed position 2.