What is Foglia?
{{Infobox river | name = Foglia | image = PesaroFoglia2.JPG | image_size = | image_alt = | image_caption = The Foglia in [[Pesaro]] | map = | map_size = | map_alt = | map_caption = | name_native = | name_native_lang = | name_other = | source1_location = near [[Sestino]] in the [[province of Arezzo]] | mouth = [[Adriatic Sea]] | mouth_location = [[Pesaro]] | mouth_coordinates = {{coord|43.9238|12.9013|region:IT_type:river|display=it}} | progression = | subdivision_type1 = Country | subdivision_name1 = [[Italy]] | location = | etymology = | length = {{convert|90|km|mi|abbr=on}} | source1_elevation = {{convert|980|m|ft|abbr=on}} | mouth_elevation = | discharge1_avg = {{convert|7|m3/s|cuft/s|abbr=on}} | basin_size = | river_system = | tributaries_left = | tributaries_right = | custom_label = | custom_data = }} The '''Foglia''' is the northernmost river of the [[Marche]] region of [[Italy]]. In ancient times it was known as ''Pisaurus'',<ref>{{cite book |title=Barrington Atlas of the Greek and Roman World: Map-By-Map Directory |editor=Richard J.A. Talbert |volume=I |year=2000 |publisher=Princeton University Press |location=Princeton, NJ and Oxford, UK |isbn=0691049459 |page=611 }}</ref> as it flows into the [[Adriatic Sea]] at ''Pisaurum'' (modern [[Pesaro]]), the last important [[Trade|trading]] centre along the river. It was also known as the ''Isaurus'';<ref>John Lemprière, ''A Classical Dictionary, Containing a Copious Account of All the Proper Names Mentioned in Ancient Authors, With the Value of Coins, Weights, and Measures, Used Among the Greeks and Romans, and a Chronological Table'', New Edition edited by F.D. Lemprière, London: T. Cadell, 1839, unpaginated.</ref> a word that is kept in the name of the ''comune'' [[Belforte all'Isauro]]. ==Geography== The