pon it may be 200 feet. 
every fifth one, are 
liting elevation above sea 
[ny definite points, such 
’ossings, railroad stations, 
biangulation stations, and 
en. The figures in each 
the point to which they 
nation to the nearest foot 
>ns of bench marks and 
accompanied by the cash or by post-oince money 
order (not postage stamps), and should be addrest 
to 
THE DIRECTOR, 
United Stales Geological Survey , 
Washington , D. ( 7 . 
December 1, 1906. 
NAL SIGNS 
URE 
In black) 
Tunnel 
Wharves 
Drawl >i idge s 
\ 
Jerry 
Ford 
■o 
rafu 
>u 
Land-grant City, village, or Park, or Triangulatioii V.S.inineral 
line boro U2-I i line e eii i e t cry Li n c station jiioiuimeut. 
Bom ala ry 
l non mu out 
n 
beet 
Slia.ll 
Mine tunnel Mine tunnel 
fshon-irtg clir&ciion )( direction unknown) 
WATER 
( printed in blue) 
Li ght -slap 
I dgirt 1 louse 
< >r beacon 
Life-saving 
station 
Falls and 
rapids 
Intermittent 
streams and 
ditches 
Canals and Aqueducts Aqueduct 
di to tie s and w a terpip e s turn Lei 
Lake or 
point 
Glacier 
ws 
Unted in green ) 
■' — - — : i j r— 
lw — 
-...-A- 
¥ 
S alt mars h. Fre sir mars Ir 
Subnierg’ed. Tidal flat 
marsh. 
A 
