Inside St. Paul's Gilded Age: What Rare Self-Guided Mansion Tours Reveal on Summit Avenue

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The transformation of Summit Avenue from an unpaved carriage trail into a nationally recognized historic preservation district required decades of strategic public policy and grassroots neighborhood defense. The avenue was formally designated a local historic district in 1974, followed by placement on the National Register of Historic Places, halting the wholesale demolition that flattened similar Gilded Age avenues in Minneapolis and Chicago during the mid-century suburban boom.