YELLOWSTONE RIVER 



6392 



YENISEI 



of detecting any defacing of the formations 

 that the desecrater seldom escapes. Previous 

 to 1916 this supervision was by officers and 

 men of the regular army. 



How to See the Park. No better roads are to 

 be found anywhere in the country than those 

 in Yellowstone National Park. They were 

 constructed by the national government and 

 are kept in excellent repair. These roads lead 

 from the three entrances Gardiner on the 

 north, Yellowstone on the west and Cody on 

 the east to all points of interest. A trip 

 through the park is one of the most enjoyable 

 excursions that one can imagine. In 1915 auto- 

 mobiles were admitted for the first time, and 

 in 1917 they replaced horses for all transporta- 

 tion. Pleasure cars run on a slow-time sched- 

 ule, which must not be exceeded, under pen- 

 alty. Hotels, equal in their appointments to 

 the best of those in large cities, are located at 

 Mammoth Hot Springs, Upper Geyser Basin, 

 the foot of Yellowstone Lake and the Grand 

 Canyon. Several transportation companies 

 maintain permanent camps, so a person is sure 

 of good accommodations, let the line of trans- 

 portation be what it may. Small parties may 

 go by themselves and provide their own camp- 

 ing outfit, if they so desire. But after they 

 have had their supplies raided by bears several 

 nights in succession they are likely to fall back 

 on a transportation company. A tour of the 

 park by the Gardiner gateway requires a drive 

 of about 150 miles. It may be made by auto- 

 mobile in five days and allow one time to enjoy 

 the most interesting features. W.F.R. 



Consult Chittenden's Yellowstone Park; Burton 

 Holmes's Travelogues, volume on Yellowstone 

 Park; Murphy's Wonderlands of the American 

 Wet. 



YELLOWSTONE RIVER, a river of Mon- 

 tana, which rises in the Shoshone Mountains 

 of Northwestern Wyoming and flows north into 

 Yellowstone National Park, where it widens into 

 Yellowstone Lake, twenty miles long and fif- 

 teen miles wide. Narrowing again to a river, 

 it plunges over the Great Falls and into the 

 Grand Canyon of the Yellowstone (see YEL- 

 LOWSTONE NATIONAL PARK). It then flows 

 northeast again across the southeastern corner 

 of Montana into the Missouri River, which it 

 reaches at Fort Buford, just beyond the bound- 

 ary of Montana and North Dakota. It is 500 

 miles long, and has a drainage basin of 67,500 

 square miles. Billings, the commercial center 

 of a vast stock-raising district, and Miles City, 

 a shipping center for wool, are on its banks. 



YEM'EN, a territory in the southwestern 

 part of Arabia, noted for its excellent coffee. 

 It adjoins the British possession, Aden, on the 

 south, and extends northward on the eastern 

 border of the Red Sea from the Strait of Bab- 

 el-Mandeb to 

 Hedjaz. It has 

 an area of about 

 73,800 square 

 miles, and is of 

 a mountainous 

 character, w i t li 

 lofty plateaus 

 from 8,000 to 10,- 

 000 feet high, 



which extend 

 into the interior. 



LOCATION MAP 

 In this little section, in the 

 A <5Pn'pj nf arid Southwestern part of the Ara- 

 A series t ana bian peninsulat nea rly all the 



terraces rise from Mocha coffee of the world is 

 ,, ,, raised, 



the coast to the 



mountains, but there are many valleys rich in 

 the vegetation of the tropics. Transportation 

 over the mountains is by caravans, and Ho- 

 deida is the leading port. Stock raising is the 

 chief pursuit of the inhabitants, who number 

 about 750,000. 



YEN, the monetary unit of Japan, valued at 

 $0.498 in United States money practically fifty 

 cents. The name is from the word yuen, which 

 means any round object. While the Japanese 

 standard of value is the gold yen of three- 

 fourths of a gram weight, such a coin is never 

 minted, but the two-yen, five-yen, ten-yen and 

 twenty-yen pieces are common. There was 

 formerly a silver yen, but this has been with- 

 drawn from circulation. 



YENISEI, yeneseh'e, one of the longest 

 rivers in the world, traversing Siberia from the 

 Mongolian border to the Arctic Ocean. It rises 

 in the Sayansky Mountains in the northwestern 

 part of Mongolia (see map, Asia, opposite page 

 417), and follows a general northwesterly 

 course, entering the Arctic through a great 

 estuary a few miles east of the Gulf of Ob. 

 The Yenisei proper is about 2,500 miles in 

 length; if the estuary be included, the river 

 has a length of 3,000 miles. Minusinsk, near 

 the mouth of the Angara River, is at the head . 

 of navigation for small boats; ocean-going 

 steamers ascend the river to Yeniseisk. 

 Through its navigable tributaries and several 

 canals the Yenisei has an important part in the 

 navigable waterway system of West Siberia, 

 and it is the connecting link between Lake 

 Baikal and trade centers on the Ob. The 

 stream is crossed near Krasnoyarsk by the 



