The Re di Anfo is a stream (or torrente) in the Province of Brescia, Lombardy. Its source is on Cima Meghè and it flows into Lago d'Idro at Anfo on the western side of the lake. Its entire course is contained within the territory of the Commune of Anfo.
A short stretch of the river is suitable for the sport of canyoning.
Anfo is a comune in the province of Brescia, in Lombardy near Lake Idro. It is bounded by other communes of Bagolino and Collio.
ANFO (or AN/FO, for ammonium nitrate/fuel oil) is a widely used bulk industrial explosive mixture.
It consists of 94% porous prilled ammonium nitrate (NH4NO3) (AN) that acts as the oxidizing agent and absorbent for the fuel and 6% number 2 fuel oil (FO).
ANFO has found wide use in coal mining, quarrying, metal mining, and civil construction in undemanding applications where the advantages of ANFO's low cost and ease of use matter more than the benefits offered by conventional industrial explosives, such as water resistance, oxygen balance, high detonation velocity, and performance in small diameters.
It accounts for an estimated 80% of the 2.7×109 kg (6×10^9 lb) of explosives used annually in North America.
The press and other media have used the term ANFO loosely and imprecisely in describing IEDs, in cases of fertilizer bombs.
The use of ANFO originated in the 1950s.
ANFO under most conditions is blasting cap-insensitive, so it is classified as a blasting agent and not a high explosive; it decomposes through detonation rather than deflagration with a moderate velocity of about 3,200 m/s in 130 mm (5 in) diameter, unconfined, at ambient temperature. It is a tertiary explosive consisting of distinct fuel and oxidizer phases, and requires confinement for efficient detonation and brisance.