Grigna (Oglio)

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Grigna
Data
location Italy
River system Po
Drain over Oglio  → Po  → Adria
source at Dosso dei Galli
45 ° 51 ′ 25 ″  N , 10 ° 22 ′ 23 ″  E
Source height approx.  2030  m slm
muzzle at Piancogno in the Oglio coordinates: 45 ° 55 '14 "  N , 10 ° 13' 54"  E 45 ° 55 '14 "  N , 10 ° 13' 54"  E
Mouth height approx.  240  m slm
Height difference approx. 1790 m
Bottom slope approx. 93 ‰
length 19.3 km
Catchment area 102.35 km²
Communities Collio , Bienno , Berzo Inferiore , Esine

The Grigna is an approximately 19 kilometers long left tributary of the Oglio in the Italian province of Brescia , Lombardy .

course

The Grigna rises at around 2030  m slm on Dosso dei Galli directly below Strada provinciale 36 . It initially flows in several arches mostly to the northwest, taking in several short streams. After the confluence of the Grigna di Stabil Fiorito from the Valle Ma from the left, it turns north-northwest. It now flows through a narrow and densely wooded valley. It takes in the creeks Valle Gabbia , Valdalone (also Travagnolo ) and Val Bonina .

At Bienno she reaches the Valcamonica , where the Valle di Campolaro stream joins directly from the right . The Grigna passes Berzo Inferiore and Esine before it flows into the Oglio after a bridge on Strada Statale 42 at about 240  m slm near Piancogno .

Individual evidence

  1. ↑ a b Geoportale Provincia di Brescia
  2. ↑ Measured in the Geoportale Provincia di Brescia
  3. ↑ Bacinizzazione 10 kmq Portale Idrologico Geografico di ARPA Lombardia