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To help bridge this gap, we conducted interviews with 10 trail managers involved in or familiar with field operations across five major U.S. long-distance trails. A thematic analysis of the transcripts reveals that trail management spans a wide array of responsibilities, including volunteer coordination, resource allocation, hazard sense-making, and on-the-ground fieldwork. We identify institutional inefficiencies that surface during four distinct stages of the temporal collaborative sense-making process as managers interpret and act upon hiker-submitted reports of trail hazards. 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