It is located on the mainland of Greenland in Sisimiut valley, approximately 3 km (1.9 mi) east of the town.
Alanngorsuaq is a standalone mountain, separated from the Nasaasaaq massif in the south by a shallow saddle.
The range flattens considerably towards the east in the area of Kangaamiut dike swarm north of Kangerlussuaq, due to pressure exerted by the icesheet for long periods in the past.
Alanngorsuaq is surrounded by several lakes to the west and northwest, one of which serves Sisimiut town as a water reservoir.
[1] The tough, 160-kilometre-long (99 mi) Arctic Circle Race takes place each winter, with the trail partially overlapping with the Polar Route from Sisimiut to Kangerlussuaq.