Michael Ghiglieri has painstakingly gone through all the documents produced by the individuals who were part of Powell's famed 1869 expedition, as well as other primary and secondary sources, to give us the fullest picture yet of what actually happened in First through Grand Canyon: The Secret Journals and Letters of the 1869 Crew Who Explored the Green and Colorado Rivers. None of its 28 crew members set foot on the continent. In the afternoon the party passes a stream on the right which ". /*