In 2008, Quadra Mining Ltd. was granted an exploitation license that covered a large molybdenum ore body in East Greenland. Mining this ore will involve constructions inside the Ramsar site “Heden” of a port, a road and an air strip. In July 2008 NERI performed baseline studies on geese and other birds in the area. The possible impacted north-western part of the Ramsar site, Gurreholm, is lush wetland tundra. About 25% of the Pink-footed geese moulting in Jameson Land use this small part of the Ramsar site. The diversity and density of breeding birds in the area are relatively high. About 3% of the moulting Barnacle geese in Jameson Land use this area. The impact of the mining activities on the Gurreholm area is evaluated in proportion to disturbance zones of 1.5, 5 and 10 km; the most substantial impact will be that up to 4,900 moulting Pink-footed geese will avoid the area. The proposed replacement area, the extended Ørsted Dal area, holds 60-80% of the Pink-footed geese expected to avoid the Gurreholm area. The number of breeding Pink-footed geese in the affected area constitutes about one third of the Jameson Land breeding population. The replacement area will compensate for more moulting Barnacle geese than those impacted, thereby giving protection under the Ramsar Convention to an extra 7% of the flyway population. It is suggested to monitor the impact when mining starts. If the proposed replacement area can not compensate fully, yet another replacement area should be delimited.