Section 370 Of Article 3. The State Highway Routes From California Streets And Highways Code >> Division 1. >> Chapter 2. >> Article 3.

. Route 70 is from:
  (a) Route 99 near Catlett Road to Route 20 in Marysville.
  (b) Route 20 in Marysville to Route 395 near Hallelujah Junction via Quincy and Beckwourth Pass.