Take I-10 EAST from Los Angeles to U.S. 385 SOUTH to Big Bend N. P. via I-10 BUSINESS in FT. STOCKTON, Texas. (You will need to turn right onto U.S. 385 SOUTH, by the way.) To bypass PHOENIX, take the PHOENIX BYPASS ROUTE. [AZ-85 SOUTH (EXIT 112 off I-10 in Arizona) (33 miles) to I-8 EAST in GILA BEND, then I-8 (59 miles) EAST back to I-10 EAST to TUCSON at EXIT 178A.]