Carle Thulka
The exposed surface of the lake normally consists of dry clay, silt or sand, covered with a salty crust. The area around Carle Thulka is very dry. Two wells have been drilled to the southeast and northwest of Carle Thulka, to search for uranium and other minerals. Both wells yield very low levels of groundwater. The water contains high levels of salt. It has also been found to contain radium and sediments from the Cambrian era.