Immigrant farm workers during the Dirty Thirties used a route that connected what states?
U.S. Route 99 U.S. Route 99 (US 99) was a main north–south United States Numbered Highway on the West Coast of the United States until 1964, running from Calexico, California, on the US–Mexico border to Blaine, Washington, on the U.S.-Canada border. It was assigned in 1926 and existed until it was replaced for the most part by Interstate 5. Known also as the "Golden State Highway" and "The Main Street of California", US 99 was important throughout much of the 1930s as a route for Dust Bowl immigrant farm workers to traverse the state. Large portions are now California's State Route 99 (SR 99), Oregon Route 99, 99W, 99E and Washington's SR 99. The highway connected to British Columbia Highway 99 at the Canada–US border.
U.S. Route 275 U.S. Route 275 (US 275) is a north–south United States highway. It is a branch of US 75, originally terminating at that route in Council Bluffs, Iowa. The highway's northern terminus is in O'Neill, Nebraska, at an intersection with U.S. Highway 20 and U.S. Highway 281. Its southern terminus is near Rock Port, Missouri, at an intersection with U.S. Highway 136.