Topographic survey of France at 1:25, 000 in IGN`s excellent TOP25 / Série Bleue series. All the maps are GPS compatible, with a 1km UTM grid plus latitude & longitude lines at 5’ intervals. Contours are at 5m intervals except for mountainous areas where the maps have contours at 10m intervals, vividly enhanced by hill shading & graphics for rocky terrain. Colouring with graphics indicates different types of vegetation or land use (deciduous or coniferous forests, moors, orchards, vineyards, etc). PLEASE NOTE: coverage of France at this scale is currently being revised – the format & the presentation of each title are indicated by the letters at the end of its Sheet Reference number (e.g. 0416ET, 3531ETR, 1923SB, etc.)MAPS WITH FULL TOURIST OVERPRINT & AN ENGLISH MAP LEGEND: all TOP25 maps & the SB editions of Série Bleue have an overprint highlighting waymarked walking trails including long-distance GR routes &, where appropriate, ski routes. Symbols indicate campsites, gîtes d’etape, refuges, equestrian centres & other recreational facilities or sites, tourist information centres, cultural heritage, etc. Towns & locations of particular interest are highlighted.- ET or OT = single-sided TOP25 map covering approx. 29x 21 km / 18x 13 miles.- ETR or OTR = waterproof & tear resistant TOP25 map covering the same area as the corresponding ET or OT number, but double-sided, printed on a smaller size sheet with a good overlap between the sides.- SB = Série Bleue map with full tourist overprint; these maps, first introduced in summer 2014, each cover approx. 29x 24km / 18x 15 miles.SÉRIE BLEUE maps with numbers ending in E (Est) or O (Ouest): most editions now indicate the GR routes, but do not show any other tourist information. Map legend is in French only. Each map covers approx. 14x 20km / 9x 12 miles.