Inventory and Monitoring Program

The Northern Great Plains Network (NGPN) is comprised of 13 National Park units in North and South Dakota, Nebraska and eastern Wyoming.

The National Park Service (NPS) Inventory and Monitoring Program was initiated by the National Parks Omnibus Management Act of 1998. This act directs the NPS to "undertake a program of inventory and monitoring of National Park System resources to establish baseline information and to provide information on long-term trends in the condition of the National Park System resources." The 13 park units in the Northern Great Plains Network are ---through the Network I&M Program --- working collectively to meet this mandate and to conserve natural resources unimpaired for future generations. The network has completed the inventory phase of this effort and is currently planning for the monitoring phase.