Vermont is home to almost 80 Disc Golf Courses, including 40+-18 hole Courses, many are Free and fully open to the public. 
Here is a List of Vermont's Disc Golf Courses with additional info:

Austine School Brattleboro, VT (9 HOLES) (Private) (FREE)
Base Camp Disc Golf Killington, VT (18 Holes) (Public) (FREE)
Basin Harbor Resort   Vergennes, VT (18 Holes) (Private) ($)
Bear Bottom Farm DGC Moretown, VT (18 Holes) (Private) ($)
Beaver Lanes Wilmington, VT (18 Holes) (Private) ($)
Big Rock at Murray Hill Waterbury, VT  (18 Holes) (Private) ($10) Reserve Tee Time (#7 in VT)
Black Falls Disc Club Montgomery, VT  (18 Holes) (Public) ($10) (#6 in VT)
Blush Hill Country Club Waterbury, VT (18 Holes) (Private) ($10) (Restricted Hours)
Bromley Woods  Peru, VT (18 Holes) (Public) ($20) (Restricted Hours)
Center Chains Waterbury Center, VT (18 Holes) (Public) (FREE)
Champlain Valley HS Hinesburg, VT (18 Holes) (Public) (FREE)
Charlotte Beach Charlotte, VT (9 Holes) (Public) (FREE)
Chester Pinnacle Recreation Area Chester, VT (18 Holes) (Public) (FREE)
Chicken Run Jericho, VT (18 Holes) (Private) (Must Call: Owner is Jerome, number is 802-878-6442)
Clear River Inn Pittsfield, VT (18 Holes) (Public) (FREE)
Colchester High School  Colchester, VT (9 Holes) (Public) (FREE)
Cold Hollow Disc Golf Enosburg, VT (18 Holes) (Public) ($10) (#3 in VT) (#76 Worldwide)
Cow Patty Classic West Brookfield, VT (9 Holes) (Private) (Restricted Hours)
East Wallingford DGC East Wallingford, VT (18 Holes) (Private) (Must Get Permission to Play)
Elevation Chains   Johnson, VT (18 Holes) (Public) ($5/Round)
Foster's Meadow Hartland, VT (9 Holes) (Public) (FREE)
Hard'Ack Saint Albans, VT (18 Holes) (Public) (FREE)
Horace Hill Recreation Area West Dover, VT (18 Holes) (Public) (Free)
Hub n' Spokes MIDDLESEX, VT (14 Holes) (Private) (Contact: Gueladio1000@gmail.com to Play)
Hunter Park Manchester, VT  (18 Holes) (Public) ($5)
Jay Peak Jay, VT (18 Holes) (Public) ($10) (Seasonal)
Johnson State College Johnson, VT (18 Holes) (Public) (FREE)
Lake St Catherine DGC Poultney, VT
Lamoille Union Disc Golf Course Hyde Park, VT
Living Memorial Park Brattleboro, VT
Lyndon State College Lyndonville, VT
Magic Mountain National Londonderry, VT
Memorial Park Brattleboro, VT
Middlebury College Middlebury, VT
Milton Disc Golf Eagle Course Milton, VT (9 Holes/18Tees) (Public) (Free)
Moonlight Meadows Barre Town, VT
Moose Head Disc Golf Jeffersonville, VT
Mountain High Bolton, VT
Mountain View Charlotte, VT
Mt Abraham High School Bristol, VT
North Calais DGC North Calais, VT
Northwood DGC Rutland, VT
Okemo Resort Ludlow, VT
Old Montpelier Elks Country Club Montpelier, VT
Oxbow Bradford, VT
Panther Pride Thetford, VT
Pearl Street Park Essex Junction, VT
Pine Grove Organics Brandon , VT
Pittsford DGC Pittsford, VT
Pittsford Recreation Park Pittsford, VT
Prouty Beach Newport, VT
Red Hawk Ridge Hinesburg, VT
Rocky Ridge Golf Course St. George, VT
Schifilliti Park Burlington, VT
Smugglers' Notch Resort Jeffersonvile, VT
StabbyMeadows Waterbury, VT
Sugarbush Warren, VT
Sunshine Village Lavender Farm Pittsford , VT
Sutton Hollow Sutton, VT
The Cliffs at Hackett Hill Bradford, VT
The Quarries Disc Golf Course Websterville, VT
The Wildflower Disc Golf Course Lyndon, VT
Twin Falls Saint George, VT
Vergennes Falls Park Vergennes, VT
Vergennes Union High School Vergennes, VT
Vista Beast Bolton Valley, VT
Von Trapp Brewery & Bierhall Stowe, VT
White River Randolph, VT
Williston Disc Golf  Williston, VT (9 Holes) (Public) (FREE)
Willow Park Bennington, VT
Wrightsville Beach Middlesex, VT
Wylie Woods Craftsbury, VT