Sonic Trace Urban Horse Country Aug. 25, 2014 Listen 3 min MORE Sam Brown takes us along for a ride with his horses. He unwinds in one of the last equestrian zones in LA County. A small ranch off of the Pomona Expressway. Banner Image Credit: Eric Pearse Chávez Credits Producers: Anayansi Diaz-Cortes, Eric Pearse-Chavez