History

The history and geography of the area influence transportation and communications.

Highways developed along historical travel routes and political and social ties among counties were influenced by the ability of people to move from area to area. Interstate 5 is the major north-south artery bisecting the region and connecting central and southern California with Oregon and Washington. The one-way traffic at Mt. Shasta Agricultural Station in Siskiyou County was estimated at 2,298,309 vehicles in 1991-92.

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