River Ruler: Length & Mapの収益とダウンロード数

How long is that stretch of river you are about to paddle? Drop two pins and River Ruler measures the riverbed itself, following every bend instead of drawing a straight line. You also get the numbers that decide a trip: where the river starts and ends, how much water it carries, how steep it runs, how winding it is, and how long the section takes by kayak, SUP or on foot. • Measure any river section — along the real riverbed, not a straight line • See the whole river, from source to mouth, with its total length • Find rivers by name, or jump straight to coordinates • Sinuosity, gradient, elev...