The first wells were drilled into the Ogallala during the drought years of the early 1930s.
在奥加拉拉钻的第一口井是在20世纪30年代早期的干旱年代。
2
This aquifer was named the Ogallala aquifer after the Ogallala Sioux Indians, who once inhabited the region.
这个含水层被命名为奥加拉拉含水层，以曾经居住在这个地区的奥加拉拉-苏族印第安人的名字命名。
3
The Ogallala aquifer is a sandstone formation that underlies some 583,000 square kilometers of land extending from northwestern Texas to southern South Dakota.