California Has No Northeastern Border—It's Bounded by Oregon, Nevada, and Arizona

The premise is geographically incorrect: California does not have a northeastern border.

Actual Borders

• North: Oregon (42nd parallel north) – ~350 km.
• East: Nevada (120th meridian west, then Colorado River) – ~600 km.
• Southeast: Arizona (Colorado River) – ~30 km.
• South: Mexico (Baja California) – ~230 km.
• West: Pacific Ocean.

Why "Northeast" Doesn't Exist

The Oregon border runs east-west. The Nevada border runs roughly north-south (then southeast along the Colorado). The corner where Oregon, Nevada, and California meet (the "Tri-State Point") is at ~42°N, 120°W—but California's boundary there is north (Oregon) and east (Nevada), not northeast.

Longitude of Eastern Border

• Northern segment (Oregon to Lake Tahoe): 120°00′ W (exact meridian).
• Southern segment (Lake Tahoe to Arizona): Follows Colorado River (approx. 114°–117° W).

So the eastern boundary is defined by the 120th meridian and the Colorado River—not a single line of longitude, and certainly not a "northeastern border."