Initial Mortgaged Collateral

Initial Mortgaged Collateral. Means any real property collateral, with respect to which a lien on and security interest in, was required to have been granted to the Senior Noteholder Collateral Agent pursuant to Section 4.18(c)(i) of the Senior Indenture by July 31, 2008, which date may have been extended for up to 60 days as described in such Section 4.18(c)(i);