As an owner you hold rights similar to a handful of straws. Each straw represents a right of ownership. An easement is the transferring of some of the straws, development or other uses, to the land trust to hold in perpetuity.
The GLLT agrees to hold, but cannot exercise the rights and to monitor the use of the land.
Your land does not have to be spectacular, unusual, pristine or large to qualify for a conservation easement. But the property under easement must have conservation value that needs to be preserved.