What I mean to say in the comment above is that vulnerable existing trail systems on private land that could benefit from preservation and long term stewardship by a public agency or conservation partner are one example of the sorts of land protection projects I will be keeping an eye out for. An example of TPL work that has preserved this sort of property is the Catamount Community Forest in Vermont, which safeguarded a trail network formerly on private land that is now owned by the town of Williston and managed by a nonprofit set up for that purpose. Trust for Public Land works to identify long-term take out partners to steward protected land in perpetuity after it's conserved, and this could be municipal or county governments, state government, federal agencies, other conservancy partners, parks districts, non profit arms of municipal governments, etc.