CREATE TABLE table_11706 ("Date" TEXT, "Course" TEXT, "Distance" TEXT, "Type" TEXT, "Winner" TEXT)

Which course had a mountain stage type on 3 June?
SELECT "Course" FROM table_11706 WHERE "Type" = 'mountain stage' AND "Date" = '3 june'
SELECT "Course" FROM "table_11706" WHERE "Date" = '3 june' AND "Type" = 'mountain stage'