108 
CORUNDUM, ITS OCCURRENCE AND DISTRIBUTION. 
work has been done at any of the bars by the present companA? 
This bar is shown in fig. 15, the bhiti' rising from the river being 8i 
to 50 feet high. 
Directly across the river from Spokane Bar, but about three 
fourtlis of a mile from the river, is Metropolitan Bar, which wa 
worked during the summer of 1890 by different men who had stake( 
out individual claims. The gravels are from G to 20 feet thick, ani 
are washed in hand rockers, the water being obtained from shallow 
wells. Several of the claims were owned l)y Robbin Bird, Charle 
Johnson, and John Durrant, of Helena, Mont. 
tf^^^..:4>s^*»A- ^* 
^i/,V^pM;t ^-l 
Fk;. 15.^ — Spokiino Rnr sapphire deposits, I.ewis and Claris County, Mont. 
Above Spokane Bar, at French Bar, Cheyenne Bar, and Emera] 
Bar, no regular mining has been done during the last fcAV years, bi 
frequently different persons have worked in the old drifts for a fe 
days at a time, washing by hand the gravel obtained. 
A large part of the work done at Emerald Bar has been undi 
ground, by means of shaft and drifts. Henry Crittenden, of Cany( 
Ferry, has done a large part of the work here, and still controls t) 
deposits. 
Below Spokane Bar, at Dana Bar, Eldorado Bar, and Americs 
Bar, there has been no mining for sapphires for a number of years. 
As mining investments these sapphire deposits have not thus f 
been financially successful, partly on account of the heavy capital iz 
tion of the companies which have bought the mines and partly 
