This article says the crash being investigated is NE of Anchorage, a very long way from the Chugach Mountains.
I have my flight sectional (map) out in my storage trailer, the Knik Glacier area is indeed somewhat NE of Anchorage, some deviation because of true north to magnetic north, about 17 degrees I think.
Allow me to describe a bit about the Chugach Mnts, first off I am not an expert of that part of Alaska, its totally remote from me, but the northern part I think does come up near the eastern side of Anchorage, many times I have flown over them on departures and approached to Anchorage, very bumpy at times.
One time in 2004 returning from Orlando we hit some turbulance that would have thrown everyone up against the ceiling, and just last year after takeoff and making the climb over them the aircraft had a turbine failure of something that controls cabin pressurization, had to abort, returned to Anchorage and had to board another flight.
The Chugach Mountain range is east of Anchorage, most of it is to the Southeast, but a portion of it is Northeast of Anchorage.
http://www.greatlandofalaska.com/reference/ranges.html
For better clarity:
The Knik Glacier {site of the crash debris} is located on the northern edge of Alaska’s Chugach mountains.