Catron County was organized February 25, 1921 from the western part of Socorro County.73

Harding County was created March 4, 1921. It was made up of a part of eastern Mora County and a part of southern Union County."4

NEW MEXICO TERRITORIAL AND STATE ACTS RELATING
TO COUNTY BOUNDARIES

Sess. Laws 1851-52: 292

Law not located but evidence certain. Sess. Laws 1869-70: 44

38 1882: 174 1889: 301

Sess. Laws 1875-76:
Sess. Laws
Sess. Laws

Sess. Laws
Sess. Laws
Sess. Laws

Sess. Laws

Sess. Laws

Sess. Laws

Sess. Laws

Sess. Laws

Sess. Laws

Sess. Laws

1891: 106
1895: 41

1897: 22

1899: 43

Remarks
Arizona Co. created.
Arizona Co. abolished.
Arizona Co. re-created.
Arizona Co. abolished.

BERNALILLO COUNTY

Bernalillo Co. lines defined.

The name of
a Mexican Co., cont. with changed lines.
San Miguel Co. extended so as to include
the eastern part of Bernalillo Co.
Small area along southern border east of
Rio Grande given to Valencia Co.
Santa Ana Co. added to Bernalillo Co.
Santa Fe Co. western line defined.
Santa Fe western and southern line de-
fined.

Santa Fé Co. southern line defined.
Bernalillo-Rio Arriba line changed-part
of Rio Arriba Co. to Bernalillo Co.
Bernalillo-Guadalupe line changed-part
of Bernalillo Co. to Guadalupe Co.
McKinley Co. created out of western part
of Bernalillo Co. Valencia Co. given
part of western part of Bernalillo Co.
1901: 75 McKinley Co. enlarged by part of Berna-
lillo Co. east of original McKinley Co.
1903: 37 Sandoval Co. created from northern part
of Bernalillo Co.
1905: 34 Rio Arriba Co. given part of northern
Sandoval Co.

1903: 132 Torrance Co. given part of southern
Bernalillo Co.

1905: 2 Torrance Co. given additional part of
southern Bernalillo Co.

CATRON COUNTY

1921: 37 Catron Co. created out of the western part
of Socorro Co.

CHAVES COUNTY

1889: 202 Chaves Co. created out of the northeastern part of Lincoln Co.

1899: 21
1903: 12

Sess. Laws

Sess. Laws
Sess. Laws

Sess. Laws

1917:

41

Sess. Laws 1868-69: 47

Sess. Laws 1875-76: 162

Sess. Laws

Sess. Laws

1882: 158
1893: 68

Sess. Laws

Lincoln Co. territory added to Chaves Co.
Roosevelt Co. given part of northeastern
Chaves Co.

De Baca Co. given part of northern
Chaves Co.

Roosevelt Co. given part of eastern
Chaves Co.

Lea Co. given eastern part of Chaves Co.

COLFAX COUNTY

Mora Co. territory, northern part, taken
for creation of Colfax.
Mora-Colfax line defined.
Mora-Colfax line defined.

Union Co. created including eastern part
of Colfax Co.

1895: 43 Union Co. lines defined.

CURRY COUNTY

Sess. Laws

1909: 9 Quay Co., southeastern part, taken to form part of Curry Co.

Sess. Laws 1851-52: 265 Socorro Co., southern part, taken to form

Sess. Laws 1851-52: 292
Sess. Laws 1854-55: 57

Doña Ana Co.

Doña Ana Co. lines defined.

Gadsden Purchase territory added to Doña

Ana Co.

Sess. Laws 1859-60: 76 Arizona Co. formed from western part of

Doña Ana Co.

Sess. Laws 1861-62: 16 Arizona Co. abolished and territory reannexed to Doña Ana Co.

Sess. Laws 1862-63: 30 Arizona Co. re-established with same lines as under original act. Arizona Territory created.

Act of Cong. Feb. 24, 1863
Sess. Laws 1866-67: 104
Sess. Laws 1867-68: 88

Sess. Laws 1869-70: 36
Sess. Laws 1871-72:
Sess. Laws 1878:

Sess. Laws
Sess. Laws
Sess. Laws

Sess. Laws

4

83

1880: 8
1880: 99
1884: 223

Socorro-Doña Ana line defined.

Grant Co. formed from western part of

Doña Ana Co.

Socorro-Doña Ana line defined.

Socorro-Doña Ana line defined.

Lincoln Co. enlarged so as to include east-
ern part of Doña Ana Co.

Socorro-Doña line defined.
Grant-Doña Ana line defined.

Sierra Co., southern part, formed from
northeastern part of Doña Ana Co.
1887: 39 Socorro Co. territory, isolated by establish-
ment of Sierra Co., added to Doña
Ana Co.

Sess. Laws

Lincoln-Doña Ana line defined.

Lincoln-Doña Ana line defined.

Otero Co., western part, formed from east

ern part of Doña Ana Co.

1901: 70 Luna Co., eastern part, formed from western part of Doña Ana Co.

EDDY COUNTY

1889: 202 Lincoln Co., southeastern part taken to form Eddy Co.

Sess. Laws

Sess. Laws
Sess. Laws

1895: 42
1917: 108

Lincoln-Eddy line defined.

Lea Co., southern part, formed from eastern part of Eddy Co.

GRANT COUNTY

Sess. Laws 1867-68: 88 Doña Ana Co., western part, taken to form