Today Metro opened four new A Line stations on the agency's growing light rail system: Glendora, San Dimas, La Verne, and Pomona. Since Metro combined the former Blue and Gold Lines in 2023, the A Line was already the world's longest light rail line; today's addition of nine new miles brings the length to 57.6 miles. Map showing today's new Glendora to Pomona segment, and the planned future extension from Pomona to MontclairGetting the A Line this far has not been easy. Pomona Mayor Tim Sandoval speaking at this morning's opening ceremonyMetro CEO Stephanie Wiggins at this morning's A Line opening festivitiesCommunity leaders cut the ceremonial ribbon on the Metro A Line extension from Glendora to PomonaToday Metro and San Gabriel Valley leaders gathered in Pomona to celebrate the new extension. “Foothill Transit.