RV David Thompson -- 2019 Eastern Arctic Operations -- non-technical summary - Ice conditions permitting, in late September 2019 the Parks Canada Research Vessel (RV) David Thompson will transit east through Bellot Strait and into Prince Regent Inlet. Non-intrusive marine survey operations (i.e. underwater archaeological, bathymetric, selected marine water sampling, habitat mapping and seabed classification) will take place at selected locations along a planned route from Bellot Strait, through Prince Regent Inlet, then Lancaster Sound, and on to Pond Inlet, where a Port visit and community open house are planned, on or around October 3rd. From Pond Inlet, the RV David Thompson will continue its Arctic transit down the east coast of Baffin Island to Pangnirtung, where another port visit and community open house are planned on or around October 10th. The port visits will provide a firsthand opportunity to showcase select artefacts recently recovered from the wrecks of HMS Erebus and HMS Terror and to update communities on the progress of the ongoing archaeological work on these sites. In Cumberland Sound, additional non-intrusive marine survey is planned in the area of Kekerten Island and Black Lead Island where historic 19th century whaling stations operated. After departure from Cumberland Sound, the RV David Thompson will head south to the Gulf of St. Lawrence and ultimately for overwintering in Prescott, Ontario. Activities connected with the Eastern Arctic operations of the David Thompson are marine based, and will principally involve side-scan sonar and multi-beam echosounder survey. Any underwater archaeological features detected by sonar, would in turn be examined by remotely operated vehicle (ROV), autonomous underwater vehicle (AUV), and/or Parks Canada divers. In addition to locating and imaging potential underwater archaeological sites, post-processing of the same multi-beam data set by different software will also yield bathymetry/seafloor topography and seabed classification data (for the purposes of benthic habitat mapping). A marine survey off Bylot Island, will complement a brief 1 or 2 day terrestrial survey of the Maud Bight wreck (210-X3), looking for additional submerged hull remains related to the conspicuous wreckage on shore of a suspected whaleship that was driven aground long ago.