San Joaquin, Sacramento, San Fernando, Hoppa and Death
Valleys
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Yes. The entirety of San Joaquin County is in the San Joaquin
Valley. San Joaquin County is the northernmost county in the San
Joaquin Valley. The Sacramento valley begins where San Joaquin
County ends at the southern border of Sacramento County. These two
valleys together-there is no border in the actual landscape- are
just one valley known as the Central valley of California.
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No MORE San Fran is 300 miles north of the San Joaquin valley.
You take I-5 north.