Vermont Constitution of 1777, CH. 2, SEC. 20Thorpe 6:3745
Every officer of State, whether judicial or executive, shall be liable to be impeached by the General Assembly, either when in office, or after his resignation, or removal for mal-administration. All impeachments shall be before the Governor or Lieutenant Governor and Council, who shall hear and determine the same.
The Founders' Constitution
Volume 2, Impeachment Clauses, Document 6
The University of Chicago Press
Thorpe, Francis Newton, ed. The Federal and State Constitutions, Colonial Charters, and Other Organic Laws of the States, Territories, and Colonies Now or Heretofore Forming the United States of America. 7 vols. Washington, D.C.: Government Printing Office, 1909.
Easy to print version.