An archaeologist excavating in a square unit at Fort Ross. The unit measures one meter on each side. A transit is an instrument used for taking elevations and making maps. A screen is a tool that archaeologists use to sift the dirt they excavate from a unit. The dirt falls through the openings, leaving the artifacts in the screen.
Archaeologists use screens to sift soils at Fort Ross.
An archaeologist uses a trowel to excavate soil at Fort Ross. An object made by humans, such as an arrowhead, glass bottle, horseshoe, or shell bead. Broken glass and pottery mark the surface of a 100-year old dump on the eastern shoreline of San Francisco Bay. Bone, shell, and stone found in a unit at Fort Ross. The bone and shell are the remains of people's meals.