ITA - ITALY
BOLSENA
Description Street circuit used in 1931 and 1932 for Circuito automobilistico del Lago di Bolsena (Lake of Bolsena car circuit). It was a mixed race, with a regularity and a speed section. First one (from Montefiascone to Bolsena) was on roads open to normal traffic, while uphill from Bolsena to Montefiascone was a speed race on closed roads. Final result was based on both results.
Location Bolsena
VT - Viterbo - Lazio
Location  
Latitude - Longitude (approx) + 42°35'23"     + 11°55'28"     (approx)
42.589722     11.924444     (approx)
UTM Coordinates (approx) X = 739955.34  -  Y = 4719401.894  -  Zone 32T     (approx)
Aerial photo / Map (*) Aerial photo / Map (*) OpenStreetMap  -   Aerial photo / Map (*) Google Maps  -   Aerial photo / Map (*) Bing Maps  -   Aerial photo / Map (*) Flash Earth  -   Aerial photo / Map (*) Wikimapia
Altitude AMSL (approx) 350 m - 1148 ft    (approx)
Inauguration September 27th 1931
Closing October 2nd 1932
Designer  
Sources and links (Translation) (**)
(1) English www.milermeter.com/?r=3261840Track layout
(2) Italian Il Littoriale 228/1931 (page 6)(newspaper of that age, republished by Emeroteca CONI - Biblioteca dello Sport) [Publishing date: September 24th 1931]
(3) Italian Il Littoriale 241/1932 (page 5)(newspaper of that age, republished by Emeroteca CONI - Biblioteca dello Sport) [Publishing date: September 28th 1932]

(*) NOTE: a complete and detailed view of the circuit can be found (if available) on Street View by Google Maps and/or Bird's Eye and 3D views by Bing Maps for Enterprise (former Microsoft Virtual Earth): both can be reached using their own link in Aerial photo / Map cell.

(**) For on-line not-English speaking sources, click on each small flag and you open the corresponding Google Translator page with automatic translation.

Circuito automobilistico del Lago di Bolsena
Description Data length are slightly different between 1931 and 1932 and same article reports different data in different points. I don’t know if there is a little difference between 1931 and 1932 layouts or if they are approximated data
Map is drawn on modern maps, so it could be slightly approximated. Also start/finish position is approximated
Years 1931÷1932
Direction Clockwise   Clockwise
Progetto Proposal NO
No longer operational YES
Car Circuit YES
Motorbike circuit  
Type Road course
Inauguration September 27th 1931
Closing October 2nd 1932
Last update of this page October 15th 2009
Info last update  
Designer  
Distinctive points Montefiascone - Marta - Capodimonte - Valentano - Cantoniera - Grotte di Castro - San Lorenzo Nuovo - Ponticello - Bolsena - Montefiascone
length 65.644  km    40.79  mi Calculated from aerial photo (*) (1)
length 14600  m 47900  ft 9.072  mi Total length of timed sections without speed restrictions (3)
length 13164  m 43189  ft 8.18  mi Total length of timed sections without speed restrictions (2)
length 68.8  km    42.752  mi Total (3)
length 66.27  km    41.179  mi Total (2)
length 67.47  km    41.925  mi Total (2)
Difference in level 284  m 932  ft 0.176  mi   (3)

Circuito automobilistico del Lago di Bolsena (approximated map)

Due to technical problems, temporarily it’s no longer possible to see the circuits on Google Maps embedded in the current page.
This feature will be restored as soon as I figure out how to do (any help would be appreciated!)

See this track layout with Google Earth - milermeter.com
(milermeter.com can be used in your browser, without installing anything; Google Earth is a program that must be installed in your computer)
(Map shown here above can show at the same time all eventual layouts drawn. If you want to see only some of them, please go to Google Maps or Google Earth, by clicking on its own link)




  m km mi
AMSL partial total partial total
Montefiascone 507 0.0 0.0 0.0 0.0
Marta 315 10.5 10.5 6.5 6.5
Capodimonte 320 3.0 13.5 1.9 8.4
Valentano 521 8.9 22.4 5.5 13.9
Cantoniera 600 9.6 32.0 6.0 19.9
Grotte di Castro 550 6.8 38.8 4.2 24.1
San Lorenzo Nuovo 503 5.0 43.8 3.1 27.2
Ponticello 329 4.0 47.8 2.5 29.7
Bolsena 340 6.5 54.3 4.0 33.7
Montefiascone 507 14.6 68.9 9.1 42.8

Updates
Date Track layout Years Description by Map by Thanks to Note
October 15th 2009 Circuito automobilistico del Lago di Bolsena 1931÷1932 Guido de Carli Guido de Carli Davide Grappolo Update Description with map
October 12th 2009 Circuito automobilistico del Lago di Bolsena 1931÷1932 Guido de Carli   Davide Grappolo Update Description without map
October 11th 2009 Circuito automobilistico del Lago di Bolsena 1931÷1932 Guido de Carli   Davide Grappolo Update Description without map
Not all eventual updates issued in last years are already visible in this list
 
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