Stumbled across this today:

Old Abe the War Eagle: A True Story of the Civil War And Reconstruction
By Richard Zeitlin

https://books.google.com/books?id=DaV27ZRL1MoC&pg=PT94&lpg=PT94&dq=Civil+War+Camp+Clear+Creek&source=bl&ots=ilrr62lfm7&sig=0xzHaBz3JFhhmK7_JSe1ZCKajM4&hl=en&sa=X&ei=8gCmVNfXLc21oQS4pIKwAw&ved=0CDcQ6AEwBDgK#v=onepage&q=Civil%20War%20Camp%20Clear%20Creek&f=false