The Hargreaves Shelter is located at kilometre 21 along the Berg Lake Trail within Mount Robson Provincial Park a UNESCO World Heritage Site. It is a day-use shelter, constructed in 1927 with a post and beam design and log infill walls. The shelter has significant historic and cultural heritage value. In 2014 Tyee acted as the General Contractor and heavy timber specialist to de-construct and reconstruct this piece-en-piece log structure. We worked extensively with the Owner, Architect, Engineer of Record and our specialty timber engineer (ISL Engineering) to reduce the weight (approx 40,000lbs) flown by helicopter to this remote site and to re-use more of the historic structure. The project specifications called for re-use of the existing log infill walls and a new log post & beam superstructure built to current standards. All non-decayed wall logs were surveyed, numbered, disassembled and incorporated back into the structure. During de-construction we identified numerous log posts, purlins, log floor joists and incorporated several of these back into the structure, further reducing materials flown into site and maintaining historic building fabric. The project was de-constructed and re-constructed in 7 weeks (37 days on-site) by mobilizing two crews, pre-fabrication and ensuring timely deliveries to avoid closing the remote shelter for the entire season.