Is there a list of warm and hot springs in Iceland, with latitude, longitude, and perhaps temperature (range)?
Íslenskar orkurannsóknir (Icelandig Geosurvey) publishes a geologic map (Jarðfræðikort / Berggrunnskort) including warm springs (laug; 25–50°C), hot springs (50–75°C), hot to boiling springs (laug eða hver; 75–98°C), and boiling springs (Suðuhver; 98–100°C). The paper map is published at 1:600,000, which is not really accurate enough to locate a spring in the wild. The springs are also shown in their online map, but that map allows coordinates to be retrieved only down to two decimal degree places, which translates to a 1.1 km × 0.5 km area. For a spring that may be less than 10 metre in diameter in a possibly rugged wilderness area, that is rather large. Google Search yields mainly tourist websites that all list the same "secret" hot springs, which just happen to be colocated with outfitters and other commercial exploitation. Openstreetmap does not have the remote springs, nor does this old topographic map series.
I am particularly interested in the ones near Hofsjökull. From the linked geologic map, I succeeded to derive the list: 18.74°W, 64.97°N; 64.98°N; 18.34°W, 65.03°N; 18.28°W, 64.92°N; 18.78°W, 64.65°N; 18.85°W, 64.66°N; 18.81°W, 64.62°N; 19.31°W, 64.68°N; but as stated, this is not precise enough.
Is there a list of all warm and hot springs in Iceland, such as collected by the Icelandic Geosurvey or otherwise, including the position to within at least 100 metre (preferably 10 metre), and possibly (as a bonus) the temperature (range) of the specific spring?