ascent=497 cai_scale=E descent=497 name=Montemelino - Monte Penna - Monte Sperello - Monte Castiglionaccio network=lwn note=number of itinerary being updated Umbria Excursion Network note:it=itinerario in corso di aggiornamento numero Rete Escursionistica Umbria note:project_page =https://wiki.openstreetmap.org/wiki/Umbria/Sentieri old_ref=M21 old_symbol=red-white M21 old_symbol:it=rosso-bianco M21 operator=Parco Regional del Lago Trasimeno osmc:symbol=red:red:white_lower: 910:black ref=910 ref:REI=NPGE900910 roundtrip=yes route=hiking rwn:name=Rete Escursionistica Umbria (REU) source=survey:CAI symbol=910 on white and red trail signs symbol:it=910 su segnavia bianco e rosso type=route website=http://www.caiperugia.it/