National Geographic : 1927 Sep
©Publishers' Photo Service MOUNTAINS IN A LAND OF PLAINS The Black Hills form an island of mountains in the vast expanse of the Great Plains and prairiesof the West. They are not apart ofthe Rockies, but their scenery is in many ways similar to that of the greater mountains, which lie 200 miles farther west. The major peaks are bare, while the lesser heights are covered with a heavy growth of pines. The dark appearance of these highlands from the Plains gave them their name. The illustration shows a view westward from Harney Peak in the late afternoon, with rough peaks risingabove aseaofclouds.