The data I'm interested in is found here and can be opened directly in your browser:
Then I'm using this code in my terminal to output it to a GTiff with its reference system intact, which is based on information found here.
gdal_translate -of GTiff -co "TFW=YES" "http://maps.greenmin.gl/geusmap/ows/32624.jsp?nocache=nocache&whoami=130.225.0.251&LAYERS=grl_geus_500k_geology_map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&FORMAT=image%2Fpng&TRANSPARENT=true&STYLES=&SRS=EPSG%3A32624&BBOX=499980.0,7190220.0,609780.0,7400040.0&WIDTH=1500&HEIGHT=3000" output_geo.tif
I then get an error
Input file size is 561895206, 1073741824
0ERROR 3: Free disk space available is 745445371904 bytes, whereas 2413321533549182976 are at least necessary. You can disable this check by defining the CHECK_DISK_FREE_SPACE configuration option to FALSE.
Any suggestions?