The Markham Regional Arboretum Society (MRAS) is a citizen-
MRAS works in close cooperation with the City of Concord Public Works department; the City is the actual owner of the park and their superb effort is what keeps Markham Nature Park open. MRAS is governed by a Board of Directors and is operated almost entirely by volunteers. MRAS raises money, creates plans, and oversees the development and maintenance of the park.
Along with donations and grants, funds to develop the park come from the MRAS Nursery plant sales. Volunteers grow plants from seeds and cuttings. These are offered to the public for sale on select Saturdays throughout the year.