Crossword Clues D3 Down: The river where James W. Marshall fisrt discovered gold. B5 Across: Built by John Sutter, the ___ was a 19th century agricultural and trade colony in California G3 Down: People who come to a country in order to settle there. I3 Down: A soft yellow malleable ductile metallic element. K2 Down: Natural removal of a soil or rock I6 Across: A power shovel to remove material from a channel or riverbed. G8 Across: either of two curving pieces of wood or metal on which an object (as a cradle) N2 Down: of or pertaining to China or its peoples or cultures. L8 Down: A large natural stream of water (larger than a creek) D11 Across: A deposit of sediment (as by a river) I12 Across: Solid unweathered rock lying beneath surface deposits of soil.