Route:
851 Spring Valley - La Mesa
- Choose your direction:
- to Spring St Trolley
- to Spring Valley
851 to Spring St Trolley
- Jamacha Bl & Gillispie Dr 
- Sweetwater Rd & Orville St 
- Sweetwater Rd & St George St 
- Sweetwater Rd & Spring Vista Wy 
- Sweetwater Rd & Harness St 
- Sweetwater Rd & Blossom Ln 
- Sweetwater Rd & Tyler St 
- Tyler St & Tyler Ct 
- Bancroft Dr & 8963 
- Bancroft Dr & Valencia St 
- Bancroft Dr & Lamar St 
- Bancroft Dr & Switzer Dr 
- Bancroft Dr & Kenwood Dr 
- Bancroft Dr & Spring Valley Elementary 
- Spring St & Palm Av 
- Spring Street Station
- approaching
851 to Spring Valley
- Spring Street Station
- approaching
- Spring St & Palm Av 
- Bancroft Dr & Spring Valley Elementary 
- Bancroft Dr & Kenwood Dr 
- Bancroft Dr & Switzer Dr 
- Bancroft Dr & Lamar St 
- Bancroft Dr & Valencia St 
- Bancroft Dr & 2300 
- Tyler St & Spring Grove Ln 
- Sweetwater Rd & Blossom Ln 
- Sweetwater Rd & Spring Vista Wy 
- Jamacha Rd & Sweetwater Rd 
- Jamacha Rd & Kempton St 
- Grand Av & Jamacha Rd 
- Grand Av & St George St 
- Jamacha Bl & Grand Av 
- Jamacha Bl & Kempton St 
- Jamacha Bl & Thayer Dr 
- Jamacha Bl & Gillispie Dr