Nature & Science
How have our natural and cultural landscapes changed since the colonization of the American West? The diaries recorded during the Anza Expedition -- by both Juan Bautista de Anza and Father Pedro Font -- provide a snapshot of Arizona and California's environment in 1775-76.
Father Font used an astronomical quadrant on the trip to fix the group's location so that the trail could be mapped and followed by others.
These diaries and other primary sources are available online at Web De Anza.