An effective national inventory of protected areas requires a network of collaborators and other stakeholders, in order to integrate the best available data into a single, comprehensive data set.

This section of the web site is a resource for information about protected areas data, including inventories in individual states, agencies and organizations as well as some best practice examples and outside resources.

1. Find Data by using our online database of inventories held by states, agencies and organizations - contribute information by using our simple registration and login system.
2. Best Practices are described in this section, which highlights a few of the many good strategies for developing and maintaining protected land inventories.
3. Publications and Links let you browse directly to organizations and programs of interest to those working on protected area inventories.