Hoover Dam, , North Star Editions, Ashley Gish,Architecture,JUVENILE NONFICTION, megaprojects; Great Depression; modern engineering; dams; Colorado river; Las Vegas; California; aqueducts; irrigation; water; Colorado; Nevada; how it's made; construction books for kids; educational nonfiction for reluctant readers; easy reading for middle grade students; Juvenile nonfiction; educational books for early readers; hi-lo books; engineering books for kids;,, Extreme Engineering, United States, en-UShttps://northstareditions.commegaprojects; Great Depression; modern engineering; dams; Colorado river; Las Vegas; California; aqueducts; irrigation; water; Colorado; Nevada; how it's made; construction books for kids; educational nonfiction for reluctant readers; easy reading for middle grade students; Juvenile nonfiction; educational books for early readers; hi-lo books; engineering books for kids;, [BLURB],[CITY],,books, ebooks, biblet, Book2look