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.
Texas State Highway 136 State Highway 136 or SH 136 is a Texas state highway that runs from the Texas–Oklahoma border south of Guymon, Oklahoma to Amarillo. The route was designated by 1931 from Stinnett to Amarillo. In 1942, the route was redirected east, ending in Borger. The highway was extended to the Oklahoma border in 1964 with new construction and the cancellation of FM 2216.