AuntJen, there is no possible way for us to evaluate the enforceability of the agreement you have indicated. It depends on WAY too many factors which we just don't have access to, as well as how courts in your area have interpreted such agreements.
Besides, I think you are confusing "legal" and enforceable. It is legal for an employer to ask an employee to sign a non-compete agreement. Period. There is no question of illegality.
However, though the agreement is legal, the SPECIFIC TERMS may or may not be enforceable. A court might rule that the agreement as it stands can be enforced. It might rule that you can only be asked to limit your employment to a 30 mile radius for six months. It might agree to the year limit but lower the 60 mile radius. Or any other possible combination.
But it is not illegal, and it is not going to be ruled illegal, for the employer to ask you to sign such an agreement.
P.S. At least in my state, a notary's seal on an agreement means only that the people who signed it provided the notary with proof that they are, indeed, the people they say they are. A notary's seal does not have anything to do with the legality or enforceability of a document. I am a notary.