High Quality Content by WIKIPEDIA articles! The Greater Monadnock Public Health Network (GMPHN) is a community health and safety collaborative which works to enhance and improve public health-related services. Formerly known as the Cheshire Public Health Network, the GMPHN is one of 15 public health regions in the state of New Hampshire. The Greater Monadnock Public Health Network strives to increase planning and collaboration across municipal boundaries and health and safety sectors.