Route 680 is from:
(a) Route 101 near San Jose to Route 780 at Benicia passing near Warm Springs, Mission San Jose, Scotts Corners, and Sunol, and via Walnut Creek.
(b) Route 780 at Benicia to Route 80 near Cordelia.
Cal. Sts. & High. Code § 620
The State Highway Routes
Amended by Stats. 1976, Ch. 1354.
Official source: California Legislative Information. Reproduced from public-domain California statutes; confirm against the official source for the current text. Not legal advice.