Fearing access to Acadia’s forests and beaches might be restricted; citizens of Mt. Desert Island began organizing themselves into “village improvement societies” to ensure their free public use. These organizations were also heavily involved in the development of new footpaths. To encourage private citizens to finance the construction of new trails, these groups introduced the highly innovative concept of “memorial paths.” “Ramble On” discusses how the trail system in Acadia (and other national parks) was developed: https://www.amazon.com/dp/B0BTRVVRYT