line of Marin, to the northwest point of Golden Rock (also known as Red Rock), being a common corner of Marin, Contra Costa, and San Francisco; thence due southeast, four and one half miles, more or less, to a point distant three statute miles from 'the natural high water mark on the eastern shore of San Francisco Bay, being a common corner of Contra Costa, Alameda, and San Francisco; thence southeasterly, in a direct line, to a point three miles from said eastern shore, and on the line first named (considered as extending across said bay); and thence west, along said first named line to the place of beginning. The islands known as the Farralones shall be attached to and be a part of said city and county.

NOTE. The identity of Golden Rock and Red Rock does not admit of a doubt. No other rock or island in San Francisco Bay will answer to the calls of the statutes. It is directly referred to in the boundaries of Marin (Stats. 1868, p. 347), and indirectly confirmed by the wording in section ten, Act of April twenty-fifth, eighteen hundred and fifty-one (p. 174), viz: "** to Golden Rock; thence up the middle of the Bay of San Pablo," etc., etc. The party who drew up the original draft of the bill in eighteen hundred and fifty-one (Commodore Selim Woodworth, of San Francisco), can testify as to its identity.

See, also, note to Alternate Section 53.

SAN MATEO.

SEC. 3951. Beginning at the southwest corner, being west San Mateo. corner of Santa Cruz County, as established in Section 3949; thence on northwestern line of Santa Cruz, as established in said section, to the southwestern line of Santa Clara, being the summit line of the Santa Cruz Mountains; thence northwesterly, by said summit line, to the source of San Francisquito Creek; thence down the south branch thereof, and down said creek to its mouth; thence to a point in the middle of San Francisco Bay, opposite said mouth, forming common corner of San Mateo, Santa Clara, and Alameda; thence in a direct line to the southeast corner of San Francisco City and County, as established in Section 3950; thence due west, on southern line of San Francisco City and County, to the southwest

corner thereof; thence southerly, along the ocean shore, to the point of beginning.

County seat-Redwood City.

Stats. 1856, p. 176; 1857, p. 222; 1868, p. 174.

NOTE.-By referring to statutes (1857, p. 222), it will be observed that the northern boundary of San Mateo runs east along township line to the eastern boundary of the County of San Francisco, as established by an Act entitled "An Act dividing the State into counties, etc., passed April 25th, 1851" (p. 174). Now, the eastern boundary of San Francisco of 1851 does not coincide at that point with the present boundary. For the sake of uniformity, and in order to avoid a jog in the western boundary of Alameda, the San Mateo boundary line is made to conform to the present San Francisco and Alameda lines, as is shown on a map prepared by G. F. Allardt, Esq., Chief Engineer of the Tide Land Survey, now on file in office of Revision Commission. See, also, note to Alternate Sec. 53.

Santa

Clara.

SANTA CLARA.

SEC. 3952. Beginning at a point opposite the mouth of San Francisquito Creek, being common corner of Alameda, San Mateo, and Santa Clara, as established in Section 3951; thence easterly, to a point at the head of a slough, which is an arm of the Bay of San Francisco, at its head, making into the main land in front of the Gegara Ranches; thence easterly, to a lone sycamore tree that stands in a ravine between the dwellings of Fluhencia and Valentine Gegara; thence easterly, up said ravine, to the top of the mountains, and as surveyed by Horace A. Higley, and shown on survey and map of Alameda County, eighteen hundred and fifty-seven; thence on a direct line easterly, to the common corner of San Joaquin, Stanislaus, Alameda, and Santa Clara, on the summit of the Coast Range, as established in Section 3932; thence southeasterly, following the summit of the Coast Range, to the northeast corner of Monterey County, as established in Section 3948; thence westerly, following the northern boundary of Monterey County, to the southeast corner of Santa Cruz County, as established in Section 3949; thence northwesterly, following the summit of the Santa Cruz

Mountains, to the head of San Francisquito Creek; thence down said creek, to its mouth; thence in a direct line to the place of beginning.

County seat-San José.

Stats. 1851, p. 174; 1853, p. 56; 1854, p. 40; 1855,

p. 125.

ALAMEDA.

SEC. 3953. Beginning at southwest corner, being common Alameda. corner, of San Mateo, Santa Clara, and Alameda, as established in Section 3951; thence easterly, on northern line of Santa Clara, as established in Section 3952, to common corner of San Joaquin, Stanislaus, Santa Clara, and Alameda, as established in Section 3932; thence northwesterly, on the west line of San Joaquin County, to the stream known as the Pescadora, being the west channel or old San Joaquin River; thence westerly, in a straight line, until it strikes the dividing ridge, in the direction of the house of Joel Harlan, in Amador Valley; thence westerly along said ridge, crossing the gulch one half mile below Prince's Mill; thence to and running upon the dividing ridge between the redwoods known as the San Antonio and Prince's Woods; thence along said ridge to the head of the gulch or creek that divides the ranches of the Peraltas from the San Pablo Ranches; thence down said gulch to its mouth; thence westerly to north point of Brook's Island; thence west to the point of intersection of the eastern line of Marin, as established in Section 3957, between Red Rock and Angel Island, the said point forming common corner of Alameda, Contra Costa, and San Francisco; thence to the extreme northeasterly point of Yerba Buena Island; thence by direct line southerly to the southeast corner of San Francisco and northeast corner of San Mateo Counties, as established in Section 3950; thence up said bay to the place of beginning. [Horace A. Higley's survey and map of Alameda. County, eighteen hundred and fifty-seven, are declared to

Alameda
[alternate
section].

contain a more particular description of the line out of the Bay of San Francisco.]

County seat-San Leandro..

Stats. 1851, p. 174; 1852, p. 178; 1853, p. 56; 1856, p.

145; 1857, p. 222.

[Alternate Section.]

ALAMEDA.

SEC. 3953. Beginning at the southwest corner, being common corner of San Mateo, Santa Clara, and Alameda, as established in Section 3951; thence easterly on northern line of Santa Clara, as established in Section 3952, to common corner of San Joaquin, Stanislaus, Santa Clara and Alameda, as established in Section 3932; thence northwesterly on the west line of San Joaquin County to the slough known as the Pescadora (being the west channel or old San Joaquin River); thence westerly in a straight line until it strikes the dividing ridge in the direction of the house of Joel Harlan, in Amador Valley; thence westerly along said ridge, crossing the gulch one half mile below Prince's Mill; thence to and running upon the dividing ridge between the redwoods known as the San Antonio and Prince's Woods; thence along said ridge to the head of the gulch or creek (Cerrito Creek) that divides the ranches of the Peraltas from the San Pablo Ranches; thence down said gulch to its mouth; thence westerly to the easterly line of San Francisco, as established in Section 3950; thence southeasterly along the eastern line of San Francisco and San Mateo to the place of beginning. [Horace A. Higley's survey and map of Alameda County, eighteen hundred and fifty-seven, are declared to contain a more particular description of the line out of the Bay of San Francisco.] County seat-San Leandro.

Stats. 1851, p. 174; 1852, p. 178; 1853, p. 56; 1856, p. 145; 1857, p. 222.

NOTE. The Commission believe that the adoption of the alternate sections 50, 53, and 54 will define in the best possible manner the boundaries of the counties therein named. No changes in the present laws are

attempted beyond bringing the boundary lines of
adjoining counties together, and making perfect inclo-
sures. The Commission take this opportunity, also, of
expressing their thanks to G. F. Allardt, Esq., Chief
Engineer of the Tide Land Survey, for the great assis-
tance he has rendered them in the matter of county
boundaries.

The following letter from that gentleman explains
itself, and his suggestions have all been given place in
the alternate sections above mentioned:

OFFICE OF TIDE LAND COMMISSIONERS,

San Francisco, September 14th, 1870.}

To the Honorable Revision Commissioners, Sac.:
GENTLEMEN: A proof sheet of your Chapter on
County Boundaries was handed to me by Tide Land
Commissioner Bullock, who requested me to examine
those sections relating more particularly to the counties
bounding upon San Francisco Bay, and to report the
result of my examination to your Honorable Board.

I have made the examination, and send you herewith
a brief report accompanied by a map exhibiting more
clearly the boundaries in question. I also inclose your
proof sheet with corrections and marginal notes.

My connection with the work of the tide land survey has given me facilities-in fact, made it one of my official duties-to ascertain and lay down, with all possible certainty, the county lines in and around San Francisco Bay; hence I have spent much time in examining and comparing all statutes and maps bearing on the subject.

Trusting, therefore, that my suggestions will be of assistance in your complicated and arduous labors, I have the honor to remain,

Yours, very respectfully,

G. F. ALLARDT,

Chief Engineer Tide Land Survey.

CONTRA COSTA.

Costa.

SEC. 3954. Beginning in Bay of San Francisco, at com- Contra mon corner of Alameda, Contra Costa, and San Francisco, as established in Section 3953; thence up the Straits and Bay of San Pablo, on eastern boundary of Marin, to point of intersection with line bearing south, twenty-six and one half degrees east, and about six and one quarter miles distant from southwest corner of Napa County,