The Eaton Wash forms the eastern section of the planned Emerald Horseshoe trail system, connecting with the eastern end of the Altadena Crest Trail in Eaton Canyon. The headwaters of the wash begin in the steep terrain of the Angeles National Forest, and descend through the cities of Pasadena, Temple City, San Gabriel, Rosemead and El Monte, crossing portions of Los Angeles County along the way.
As envisioned in the Emerald Horseshoe plan, the trail along Eaton Wash would include a variety of cultural amenities, such as a bird sanctuary at the Eaton Canyon Reservoir, a plaza at Colorado Street, and a park where the Eaton Wash joins the Rio Hondo. An urban farm could also be built on nearby land. The corridor would include a commuter bikeway, as well as a secondary trail for hikers and joggers.
The Arroyos & Foothills Conservancy has developed a detailed plan for the Eaton Wash corridor, in addition to the Emerald Horseshoe Concept Plan. The Eaton Wash Corridor Plan was funded by Southern California Edison, and developed with outreach to the local communities and coordination with government agencies, businesses, and community groups.