Is there a European free trade zone?

Michael Gove claimed this week that there exists a European free trade zone. He said:

There is a free trade zone stretching from Iceland to Turkey that all European nations have access to, regardless of whether they are in or out of the euro or EU. [his footnote n. 26] After we vote to leave we will remain in this zone. The suggestion that Bosnia, Serbia, Albania and the Ukraine would remain part of this free trade area – and Britain would be on the outside with just Belarus – is as credible as Jean-Claude Juncker joining UKIP.

His only supporting reference for this claim, as given in the above document, is this map from the EU:

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