The daily tasks begin September 1st.Read More…
News story posted on oregonlive.com January 17, 2012.
Article from the February 2012 issue of National Geographic.
News story posted on KGW.com on January 19, 2012.
News story posted on KATU.com January 19, 2012.
Press release from the Portland Bureau of Transportation (PBOT) issued January 19, 2012.