| Mission Vieja | |
|---|---|
 Whittier Narrows, location of Mission Vieja from 1771 to 1776 | |
| Location | Montebello, California |
| Coordinates | 34°01′51″N 118°04′24″W / 34.0308805555556°N 118.073227777778°W |
| Built | 1771 |
| Designated | Jan. 11, 1935 |
| Reference no. | 161 |
  Location of Mission Vieja in the Los Angeles metropolitan area | |
The Mission Vieja or Misión Vieja or the Old Mission was the first Spanish mission in the San Gabriel Valley. Mission Vieja was built in 1771 by what would become the fathers of the Mission San Gabriel Arcángel. The Mission Vieja site was designated a California Historic Landmark (No.161) on Jan. 11, 1935. The location of Mission Vieja is at what is now the South West corner North San Gabriel Blvd and North Lincoln Ave in Montebello, California. The site has a plaque marker and an El Camino Real Bell. Mission Vieja was the first building in the San Gabriel Valley and Los Angeles County.