Coordinating environmental stewardship across 23,427 acres from Liberty Station in Point Loma, San Diego, the Rose Creek Watershed Alliance has guided watershed planning since its 2005 founding. The coalition developed the Rose Creek Watershed Opportunities Assessment, which San Diego City Council accepted in 2008 as the governing framework for creek restoration, habitat protection, and stormwater management — a municipal-plan model paralleling the corridor strategies advanced by The San Diego River Park Foundation. The watershed spans portions of Scripps Ranch, Mira Mesa, University City, Clairemont Mesa, and Pacific Beach before draining into Mission Bay, making it one of the most urbanized and ecologically stressed sub-watersheds in the county. On-the-ground programs include volunteer water-quality monitoring, habitat restoration along Rose and San Clemente creeks, and the Sense of Wonder environmental-education walks that bring more than a thousand public-school students into the canyons each year through SDG&E's Environmental Champions Grant. Managing urban open space at that scale requires coordination with land stewards across the broader park system, including San Diego Parks Foundation, which funds infrastructure improvements in many of the same canyon corridors the Alliance monitors from its Point Loma base. The Alliance's highest-stakes deliverable remains the ongoing implementation of the Opportunities Assessment — a multi-decade blueprint that sequences creek daylighting, non-native vegetation removal, and trail connectivity across thirty-six square miles of developed watershed.