Alpine Summit Gazetteer: Fields (1) WGS84 East Coordinate (2) WGS84 North coordinate The standard deviation of these coordinates from their true values should not be more than one arc second. (3) Height above sea level, read from the source maps. (4)-(6) Source Series, Block, Local Area SERIES BLOCK SIZE LOCAL AREA SIZE R0 Russian 1:50,000 60'x60' 15'x10'(AA to DF) D German 1:25,000 60'x30' 5'x2' (AA to LO) F1 French 1:25,000 2592"x1296" 324"x162" (.10gr x .05gr) (A0 to H7) F2 French 1:50,000 2592"x1296" 324"x162" (.20gr x .10gr) (A0 to D3) H1 Swiss 1:25,000 70kmx48km 5kmx6km (A0 to N7) H2 Swiss 1:50,000 70kmx48km 10kmx12km (A0 to G3) I Italian 1:50,000 60'x60' 10'x6' (A0 to F9) A Austrian 1:25,000 60'x60' 3.75'x3.75' (AA to PP, displaced 5'E) Block names are based on a northing letter (for 60' blocks, D to G show 44-45N to 47-48N respectively) followed by two easting digits (for 60' blocks, 05 to 14 show 5-6E to 14-15E respectively). (7) Name of summit. Where alternative names appeared on source maps, the name that best uniquely defines the summit was used. Total number of records : 21,069. There may be a few duplicates and non-summit features (e.g. passes, lakes). Double summits may appear twice under the same name. The source series should generally, but not always indicate the country within whose borders the summit is situated. The main exception is the Italian series, which only partially covers the Italian Alps. Most of the Italian Alps that are close to France and Switzerland appear in the F2 and H2 series. The H2 and R0 series are wholly in Italy. Most summits on the German border appear in the D series; the summits on the non-German Austrian border appear in the A series; and summits along the Italian border do not generally appear in the I series. Slovene Alps appear in the I (West) and A (East) series. An alternative gazetteer, showing the numeric fields in binary, is also available. Jonathan de Ferranti (mailto: viewfinder@sol.co.uk) 13/03/2004