Over 50 native tree species have been identified in the park by experts, which makes Robinson an abundantly diverse forest. More species are being found every day, as studies are ongoing. Experts have located and measured a pignut hickory that is the largest in the state. A rare community of Tulip Poplar trees is thriving in the park. Due to the many tree types in this rare forest, it is expected that corresponding rare and endangered plants and animals common to their shared environment will continue to be found. The Allen Bird Club of Springfield has recorded 186 species of birds observed in the park over the past 50 years. Three vernal pools have been certified and several more potentially certifiable pools are being studied. A study by Natural Heritage over several months in 2007 has recorded 8 species of rare dragonflies, many Eastern Box Turtles, and several other rare plants and communities. It is notable that the Natural Heritage database did not contain all of the species now known to exist in Robinson State Park before this recent study was conducted.

ISA certified arborist Matthew "Twig" Largess has conducted several studies of the park and through his dedication was instrumental in the saving of this forest in its intact state. He was the main sponsor of the June 2007 Bio-Blitz which brought about 40 scientists to the park. Matt led several walks for the June 2008 Community Environmental Day. He can be reached at largesstree@aol.com or phone him at 401-423-0508.

The park is known to have Native American sites that were called to be preserved in a 1989 report on the park. The citizens' committee that studied the park at that time stated that many areas of the park should be environmentally protected zones. The 1989 report indicated that the park was not an appropriate place for timber harvesting. Studies during the two year controversy have echoed these reports and contributed to the state decision to cancel the timber sale.

Experts who have examined this forest are astounded by it, saying they would have never expected to find this kind of forest in such excellent condition in Massachusetts, particularly near a city. In May 2007 and 2008 some "hazard trees" were removed to assure the safety of visitors to the park. More dead and dying red pines may be removed, but some will be retained for the habitat they provide, particularly to woodpeckers.

The Friends of Robinson State Park were formed to save the hardwood sections of the park from the state sponsored timber sale. Now the Friends hope to share what has been learned about the park with the surrounding communities and work to make the preservation of the park permanent. The Agawam City Council has honored the park by unanimously approving a proclamation that the third Saturday of June will be Robinson State Park Day in Agawam, forever.