The area covered by the Cobbs was part of a larger bioregion occupied by the Lenape tribe. Referred to as a "favorite place for Indians" demonstrate the indigenous legacy still prevalent in the area. There remains a significant local Lenape community presence, with groups such as the Lenape Nation of Pennsylvania, which hosted a 2018 river journey, creating a pledge with the surrounding community to support the Lenape peoples. Additionally, a more general history of the Lenape in the Philadelphia area reads as such: “The story of the Indigenous peoples of Philadelphia begins in the long-ago time with the emergence of Turtle and the earth that formed on its back. From this first earth, the first tree grew and so too did the first sprouts. These sprouts grew and grew and became First Man and First Woman and so the People first came to be. (Adapted from the first written emergence story of the Lenape 1679, as told by Lenape elder Tantaque, courtesy of Curtis Zunigha).” For many
West Philadelphia and
Upper Darby children, Cobbs Creek is their first introduction to wooded greenspaces and freshwater ecosystems. Local schools run
service learning activities to support conservation in the creek and surrounding parks; e.g., conducting water-quality studies to track pollution. The wildlife includes regional birds, raccoons, opossums, spotted deer, wild turkey, rabbits, and in recent history, even a mountain lion. Plans for an expressway up the Cobbs Creek valley began as early as 1930. Anticipated as part of a five-mile parkway system around Philadelphia, Cobbs Creek Expressway, designated
I-695, would have begun at
I-95 near Essington and connected with another expressway at Whitby Avenue in Southwest Philadelphia. The proposals were abandoned in the mid-1970s after community objections. The
Frankford Creek has a similar impact for
Cheltenham Township and
North Philadelphia children. The Cobbs Creek Trail is part of the
East Coast Greenway, a 3,000-mile long trail system connecting Maine to Florida. ==Tributaries==