One of Portland's oldest neighborhoods, Goose Hollow is steps from downtown and beloved for its quirky character, historic homes, spectacular views, and walkability. Over a century ago, the actual "hollow" was dramatically altered when the meandering Tanner Creek, in a deep gulch with several trestle bridge crossings, was diverted underground and infilled. The creek's presence is still felt in the ravine carved through the Tualatin Mountains (spanned...