Colorado River disappeared record for 5M years: now we know where it was

Article

• Colorado River vanished from geological record for ~5 million years
• New research: it flowed into an upstream basin before capturing into Grand Canyon drainage
• Explains the gap by tracing ancient sediment deposits

Discussion

• Commenters clarify the river became continental by flowing into the Grand Canyon system
• Jokes about popup ads and almond farmers burying the evidence

Discuss on HN