Held-Moran Nature Preserve is surrounded by residential areas and a fenced off portion of the U.S. Naval Landing Field at Waldron Road. A thirty foot fire lane is maintained around the circumference of the ninety acre preserve while thick underbrush and coastal live oaks prohibit access to the interior. A variety of wildlife including white-tailed deer, javelina, bobcat, rabbits, fox and of course raccoon have been reported along the edge of the brush. Birds are abundant during spring migration.