Section 23137 Of Article 2. Boundaries Of The Several Counties From California Government Code >> Division 1. >> Title 3. >> Chapter 2. >> Article 2.
23137
. The boundaries of San Diego County are as follows:
Beginning at the southwest corner of the State of California as
described in Article XXI of the Constitution of the State of
California; thence easterly along the international boundary line
between the United States and Mexico to its intersection with the
range line between R. 8 E. and 9 E. of San Bernardino meridian;
thence northerly along the range lines between said R. 8 E. and 9 E.,
which is also the westerly boundary of Imperial, to the northeast
corner of T. 9 S., R. 8 E., which point is also on the southerly
boundary line of Riverside; thence west along the second standard
parallel south, San Bernardino base, which is also the south boundary
line of Riverside, to the range line between T. 8 S., R. 3 W. and T.
8 S., R. 4 W.; thence north along said range line to the southerly
boundary of the Rancho Santa Rosa; thence northwesterly and northerly
along the boundary line of said Rancho Santa Rosa to the township
line between T. 7 S., and T. 8 S., S. B. B. & M.; thence west along
said township line to the easterly line of the Rancho Mission Viejo
or La Paz, which is also the southeasterly boundary line of Orange;
thence following said southeasterly boundary of Orange southerly and
westerly along the easterly and southerly line of said Rancho Mission
Viejo or La Paz to the most westerly line of the Rancho Santa
Margarita y Las Flores; thence southerly along said westerly line of
said Rancho Santa Margarita y Las Flores to the shore line of the
Pacific Ocean, and continuing in the same direction to a point three
English miles in said Pacific Ocean, which point is on the westerly
boundary line of the said State of California; thence southerly along
said westerly boundary line of the State of California to the place
of beginning.