The Waldo Welcome
1 Everyone who enters Marin via the iconic Golden Gate Bridge climbs the Waldo Grade and, at its highest point, passes through the Waldo Tunnel. We can thank Alan S. Hart for the spectrum of color drivers see as they enter the tunnel. Just before retiring in 1970 as head of the San Francisco District of Highways (now Caltrans), Hart decided to paint a rainbow on both south-facing archways. We agree with Hart that there is no better way to enter Marin and experience what we believe is truly the pot of gold at the end of the rainbow.
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