BULLETIN 389, U. S. DEPARTMENT OE AGRICULTURE. 
10 
PER CENT 
80 30 40 
(1904 
ARIZONA { 1909 
( 1914 
(1904 
CALIFORNIA 1909 
( 1914 
(1904 
COLORADO 1909 
1 1914 
( 1904 
IDAHO--- •{ 1909 
( 1914 
( 1904 
ILLINOIS < 1909 
( 1914 
( 1904 
INDIANA — i 1909 
( 1914 
( 1904 
IOWA -j 1909 
1 1914 I 
(1904 
KANSAS A 1909 
( (914 
(1904 
MICHIGAN \ 1909 
( 1914 
(1904 
MINNESOTA 1909 
1 1914 
( 1904 
MISSOURI -{ 1909 
I 1914 
(1904 
MONTANA ■{ 1909 
(1914 
(1904 
NEBRASKA { 1909 
( 1914 
(1904 
NEVADA \ 1909 
I 1914 
(1904 
N.MEXICO ~\ 1909 
(1914 
(1904 
N.DAKOTA -< 1909 
( 1914 
(1904 
OHIO 1909 
( 1914 
(1904 
OREGON i 1909 
( 1914 
(1904 
S.DAKOTA- i 1909 (l 
( 1914 
1904 
UTAH { 1909 
1914 
( 1904 
WASHINGTON — 1909 
( 1914 
1904 
WISCONSIN 
1914 
1904 
WYOMING { 1909 
1914 
Fig. 1.— Percentage of surfaced roads in the respective States. 
