The Lion is from the Coat-of-Arms of Uxbridge, England
The green and white mantle represents the livery colours of Uxbridge
The Mask of an Ox + Bridge = "Ox-Bridge"
The Maple Leaf is from the Coat-of-Arms of Ontario
The two blue wavy lines on white = Water
The Rye Sheaves on green background = Agriculture
The Cog Wheel = Manufacturing and Industry
On't Uxbridge = On to it Uxbridge or Uxbridge, Ontario
The gold background is for Gould (Gold), the town's early major politician, businessman & entrepreneur.