CREATE TABLE table_33767 ("Chapter" CLOB, "Chartered" CLOB, "School" CLOB, "State" CLOB, "Status" CLOB, "Charter Range" CLOB)

What are the active dates for the Montana State University chapter?
SELECT "Charter Range" FROM table_33767 WHERE "School" = 'montana state university'
SELECT "Charter Range" FROM "table_33767" WHERE "School" = 'montana state university'