Adopt a Highway: What are those Adopt a Highway signs all about

Adopt a highway sign hi-res stock photography and images - Alamy

Caltrans Adopt-A-Highway Program

Adopt a highway sign hi-res stock photography and images - Alamy

Adopt-A-Highway - Friends of Sleeping Bear Dunes

Adopt-A-Highway Program

Celebrate Adopt-A-Highway efforts during National Volunteer Week

Two States Have Gone to Court to Keep the KKK From Adopting a

Adopt-A-Highway volunteers find treasures among the trash

Almanac: Adopt-a-Highway signs - CBS News

Adopt-a-Highway America editorial image. Image of campaigns

Adopt A Highway Sign_20180329_111838, This one has one of t…

NYC DOT - Adopt-A-Highway

The Ku Klux Klan Proves Adopt-A-Highway's Most Controversial

Adopt-A-Highway program engages community to volunteer and clean

Adopt a highway, keep Barton County clean