No New Clues in Sinclair Search Effort

Search efforts have continued over the last week for missing person Mark Sinclair, who was last seen on Monday, July 8.

The last confirmed sighting of Sinclair was on the Highline Trail by a visitor late Monday afternoon, July 8, between Haystack Butte and Granite Park Chalet. He was observed earlier that afternoon by Logan Pass Visitor Center staff as he left an unsecured vehicle, keys, and dog in the Logan Pass Parking Lot and headed towards the Highline Trail.

Ground and air crews continue to search the Highline Trail and Granite Park Chalet vicinity, in addition to other drainages and trails near the area. Crews have encountered steep, treacherous terrain, high winds, rain, and bears, among other hazards that characterize Glacier’s high country. Gray rock, shaded areas, and dense vegetation have increased the difficulty of pinpointing Sinclair’s whereabouts.

Visitors hiking in the general Logan Pass and Granite Park area may hear search crew whistles, and will see helicopters inserting ground search crews and conducting aerial surveillance.

Search managers are using helicopters, cameras, infrared flights, and drones to search areas difficult or impossible for ground crews to reach.

Search team investigators have received an abundance of information about Sinclair from the public. Investigators have pursued every lead but nothing has been discovered to reveal his whereabouts. In the absence of any actionable clues over the past several days, search managers expect to suspend large scale ground search efforts later this week unless something substantive is discovered.

Investigations into Sinclair’s activities, personal connections, and information received via the tip line (406-888-7077) will continue. The public is urged to continue to report information that may lead to Sinclair’s whereabouts, including sightings and any discovery of his belongings.

The search team is also distributing an updated photo of Sinclair that reflects his most recent appearance.

Glacier National Park is deeply appreciative of the ongoing partnership with Flathead County staff and volunteer search and rescue personnel, U.S. Forest Service, Whitefish Police Department, U.S. Geological Survey, and Homeland Security for search and investigation resources.



Jeff
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