This is one of the two guardian angels for the Hoover Dam.
They are there to protect the dam and have acheived their goal to date.
Their job will be easier from 2009 onwards when a new bridge is built keeping traffic off the dam.
If anyone ever gets the chance to visit this magnificent structure do so and take time to learn how it was built.
Sorry I don't have any decent pictures of the dam, none could do it justice.
Thanks for looking