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Cal-Steam
San Francisco
    Northbound I-280:
  • Take Mariposa St. exit.
  • Turn right at the light onto Mariposa St.
    Southbound I-280:
  • Take Mariposa & 18th St. exit.
  • Turn right.
  • Loop down to Mariposa St.
  • Turn right under freeway onto Mariposa St.