Exploring San Francisco through the lens of city blocks, Blocker is a regular series by Charles Hodgkins. Look for it on SFist every other Wednesday, before the lunching hour.

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Blocker, No. 38: Steiner St. in the Lower Haight

Within a minute of Team Blocker’s arrival on Steiner between Haight and Waller, a mammoth tour bus rolls south down Steiner. Hunh? Clearly, it’s coming from Alamo Square up the hill a few blocks...but where it’s headed, we’re unsure. Duboce Park for a game or two of slobberball? Perhaps a little exercise up and down the Sanchez steps? Seems an odd route for a tour coach, seeing as how the Lower Haight has always been one of San Francisco’s most locally geared neighborhoods — as homegrown as its natty sibling, the Upper Haight, sometimes isn’t.