Discovering Lewis and Clark "is a progressive Web site, currently containing more than 1,400 pages, which is increased by one or more new episodes each month. [...] The centerpiece of Discovering Lewis and Clark is a nineteen-part synopsis of the expedition's story by historian Harry W. Fritz, illustrated with selections from the journals of the expedition, photographs, maps, animated graphics, moving pictures, and sound files. [...] You can also navigate through Discovering Lewis and Clark by using the "Discovery Paths" or the "Journal Excerpts" menus, or through the interactive map [...]. The word-search utility can be used to find references anywhere in the text." [self-description]