CREATE TABLE "table1_23685890_2" (
  "local_government_area" text,
  "type" text,
  "major_town" text,
  "land_area_km" text,
  "pop_2006" real,
  "density_km_2" real,
  "towns" real,
  "est" real
);

Question: On what year was the local government area with a surface of 4563 square kilometers established?
SQL: SELECT "est" FROM "table1_23685890_2" WHERE "land_area_km"='4563';

Question: Which major town is located within the Outback Areas Community Development Trust?
SQL: SELECT "major_town" FROM "table1_23685890_2" WHERE "local_government_area"='Outback Areas Community Development Trust';

Question: How many towns exist on the government area with a surface of 110 square kilometers?
SQL: SELECT MIN("towns") FROM "table1_23685890_2" WHERE "land_area_km"='110';

Question: What type of local government area is Yalata?
SQL: SELECT "type" FROM "table1_23685890_2" WHERE "local_government_area"='Yalata';

Question: What was the 2006 population count of the local government area where Coober Pedy is located?
SQL: SELECT "pop_2006" FROM "table1_23685890_2" WHERE "major_town"='Coober Pedy';