Much of the site is wooded with open birch woodland running along part of the boundary with the railway. Denser woodland and scrub occupies much of the rest of the site. There are areas of grassland and a small pond. At the centre of the reserve a wooden cabin provides an office and a classroom.
Over 200 species of wild flowers have been recorded. This includes the unique Haringey Knotweed discovered in 1987, a cross between the Japanese Knotweed and the Russian vine. More than sixty species of birds have been observed since Railway Fields opened.
Just under 100 years later, in 1967, the yard was closed. In 1975 it was acquired by Haringey Council for a community centre for Haringey Social Services. In 1986 it was opened as a nature park and used as an educational nature reserve. In 1990 it was declared a statutory local nature reserve.