Important to Q^olo^ists. 
To the student of the crystalline rocks the line of the 
St. Paul & Duluth Railroad, 
“DULUTH SHORT LINE,” 
Affords very fine opportunities for observation and collection. A series 
of hills of Huronian schists and slates begins at Moose lake and 
continues to Thompson, where may be seen, from the car windows, 
some of their characteristic outcrops, with frequent cuts along the grade. 
A few miles east of Thompson it gives place to the rock known as 
gabbro, one of the most remarkable of the Archean outbursts and 
lateral overflows of eruptive rock in the United States. This continues, 
with frequent fine cuts by the grade, and a rapid descent, to Duluth, 
where it forms the prevalent rock in the hills back of the city. At 
Duluth the characteristic rocks of the copper-bearing series are found 
resting on the gabbro, while at Fond du Lac the associated brown sand¬ 
stones and conglomerates present perpendicular cliffs along the St. 
Louis river. No geologist or mining engineer who visits the North¬ 
west should fail to improve the opportunity of seeing this interesting 
region. 
The attention of 
TOURISTS, SPORTSMEN AND HAY FEVER SUFFERERS 
is especially called to the healthful pleasure resorts situated along the 
line of above railroad: White Bear Lake, Forest Lake, Centre City 
(Chisagolakes), Taylor’s Falls, Hinckley, Sturgeon and Moose lakes 
are beautiful points, where hay fever is unknown, and which afford 
excellent opportunities for the lovers of the gun and rod to exercise 
their skill. The excellent train service of the St. Paul & Duluth R. R. 
renders easy access to all these points from either the north or south. 
For rates, tickets and further information apply to ticket agents. 
A. B. PLOUGH, G. C. GILFILLAN, 
Genl. Pass. Agent. 6 Special Agt. Pass. Dept. 
ST. PAUL, MINN. 
