How many miles from New Orleans to Round Top Texas?

460 miles taking this route:

1. Take I-10 WEST from New Orleans to SH-71 WEST to AUSTIN and LA GRANGE at EXIT 695 near Columbus, Texas.
2. Take SH-71 WEST to SH-237 via SH-159 (EXIT off of SH-71 in La Grange onto SH-159, turn right onto SH-159 EAST to SH-237 ; follow SH-159 EAST to SH-237, continue STRAIGHT onto SH-237 NORTH to ROUND TOP).
3. Take SH-237 NORTH to Round Top.