Are you certain of that?

The USFWS non traditional section 6 conservation grant program CAN be used to secure conservation easements.

Under eligible projects in the WWRP page it says "Acquisition includes the purchase of perpetual interest in real property or non-perpetual interests such as leases and easements."

An easement can be perpetual, or it can be for a fixed period of time, with renewals, like a lease.

The state then would be required to manage the easement for the duration of the term of the easement.