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Geologist's dream unearthed by the 405 construction project (photos)

by Sanden Totten | Take Two®

The 405 from the Mulholand bridge. Recent contraction on the freeway has unearthed rock formations that haven't seen the light of day for millions of years. Ken Scarboro/KPCC

If you're heading to grandma's house this week and you're stuck on the 405, consider this: While the 405 expansion project through the Sepulveda Pass may be a headache for you, it's had a silver lining for geologists.

The roadwork has given them a rare glimpse into the history of the Santa Monica Mountains. KPCC's Science Reporter Sanden Totten recently took a road trip through the eons.

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