Stacked doughnuts and “damn fine coffee” welcomed a small but eager group of visitors Thursday morning to the World Forestry Center. These die-hard fans had traveled — at least one from out of state — to see the log. But not just any log. This lump of ponderosa pine, hand selected by David Lynch, is the most famous prop from his cult classic TV series, “Twin Peaks.” It was lovingly carried by actress Catherine Coulson, who portrayed the wise and mysterious Margaret “The Log Lady” Lanterman on the show. The pop-up exhibit, “What the Log Saw: Honoring the legacy of Catherine ‘The Log Lady’ Coulson,” celebrates both the on-screen character and the woman who portrayed her, while making connections between “The Log Lady” and sustainable forestry practices. …Coulson’s daughter, Zoey Yinger of Portland, approached the World Forest Center in January about displaying the log after the devastating Los Angeles wildfires.