This document outlines the Long-term Australian Multiscale Plot System (LAMPS) facility. LAMPS aims to establish a network of long-term monitoring plots across Australian ecosystems to study key ecological questions. It will integrate existing fine-scale research with larger-scale mandated monitoring. LAMPS will coordinate activities between AusPlots, Long Term Ecological Research Network (LTER), and Supersites programs. An initial workshop brought together researchers to plan LAMPS and identify major ecological questions and data needs. The network will be overseen by researchers from University of Adelaide, Australian National University, and James Cook University.