Gandalf was himself utterly spent in the battle, and after the fall of the Balrog, he too collapsed into darkness and died. For nineteen days Gandalf's body lay on the mountain, until his spirit was sent back to complete his mission in
If you look at the fight scene between Gandalf and the Balrog as they fall, it takes about 69 seconds for the two to fall from the bridge to the underground lake. Estimate the height of this fall.
Coming to his senses, Bilbo admits that the ring has been troubling him, and leaves it behind for Frodo as he departs for Rivendell. Over the next 17 years, Gandalf travels extensively, searching for answers on the ring. He finds some answers in Isildur's scroll, in the archives of Minas Tirith.
During The Lord of the Rings: The Two Towers, it's revealed Gandalf did not fall to his death but instead battled with the Balrog to his last breath. With his victory, Gandalf the Grey passed from Middle-earth and returned even more powerful as Gandalf the White.
In the end, the Balrog was defeated and cast down, breaking the mountainside where it fell "in ruin". Gandalf himself died shortly afterwards, but he returned to Middle-earth with even greater powers, as Gandalf the White, "until his task was finished".
Gandalf wasn't in Middle Earth at the time. The Battle of the Last Alliance took place at the end of the Second Age, and the arrival of the Ishtari (Wizards) from Valinor took place at around the year 1000 of the Third Age.
So in Two Towers Gandalf says he has been around for 300 lives of Men.
Knocking Ecthelion's sword out of his hands, Gothmog prepared to strike at him, but, as he raised his axe, Ecthelion ran forward at the Balrog lord, ramming his pointed helmet into the beast's chest and forcing both of them into the Fountain of the King.
The Dwarves dug too deep, greedy for mithril, and disturbed a demon of great power: a Balrog, which destroyed their kingdom. By the end of the Third Age, Moria had long been abandoned by the Dwarves, and was a place of evil repute.
In the end Tolkien stated that there were probably "at most" seven Balrogs: In the margin my father wrote: 'There should not be supposed more than say 3 or at most 7 ever existed.
Frodo came of age as Bilbo left the Shire. Frodo inherited Bag End and Bilbo's ring. Gandalf, uncertain about the origin of the ring, warned Frodo to avoid using it and to keep it secret. Frodo kept it hidden for the next seventeen years, and it gave him the same longevity it had given Bilbo.
In Tolkien's book, Gandalf is gone for 17 years before he returns to the Shire with news of the ring. In Jackson's film, how long is he gone before returning? In Tolkien's book, Gandalf is gone for 17 years before he returns to the Shire with news of the ring.
Gandalf began to suspect the Ring was more than it seemed only on the night of Bilbo's party. Bilbo's behavior that night concerned him. So he didn't stay in the Shire for 17 years, he LEFT the shire for 17 years (after cautioning Frodo not to use the Ring, and to keep it secret and safe).
Third Age. For more than five thousand years, the Balrog lay dormant at the roots of the Misty Mountains beneath the Dwarven kingdom of Khazad-dûm.
Lord of Balrogs
The most powerful of all the Balrogs, one of the chief servants of Melkor, who held an authority hardly less than Sauron himself. A wily commander and fearsome fighter, Gothmog was often accompanied by others of his fiery kind, and at least in the Nirnaeth he had a personal guard of dozens of Trolls.
For more than five millennia, the Balrog hibernated in his deep hiding place at the roots of the mountains in Khazad-dûm. He remained undisturbed throughout the Second Age and most of the Third, before the mithril-miners of dwarf-King Durin VI awoke him in T.A. 1980.
Myth: Gimli is the last dwarf.
Though Gimli has no children, he is not the last Dwarf of Middle-earth. After the fall of Sauron, his people continued to thrive in the Lonely Mountain. Gimli made his home in Rohan, in the Glittering Caves of Aglarond, and many of his kinsfolk came with him.
Combining the poor communication between Erebor and Moria with the Dwarves' extended lifespans, Gimli might not have known about the fall of Moria simply because Erebor had not grown too worried about the lack of information yet.
While Gandalf had felled the Balrog, Moria remained a place of evil creatures until the Fourth Age.
So, one glimpse into Smaug's eyes and the Balrog falls under the spell. Even if it's just for a second—a moment of hesitation or distraction, it'd be enough. Smaug would snatch up Durin's Bane and gobble him up with his sword-sharp teeth (and we know swords can kill Balrogs).
Balrog appears as one of the final bosses on Street Fighter X Mega Man. His weakness is the Mega Buster and the Soul Satellite.
Gandalf pursued the monster for eight days, until they climbed to the peak of Zirakzigil, where the Balrog was forced to turn and fight, its body erupting into new flame. Here they fought for two days and nights. In the end, the Balrog was defeated and cast down, breaking the mountainside where it fell "in ruin".
That said, the people behind the “official movie guide” for The Lord of the Rings list Legolas as being born in the year 87 of the Third Age of Middle-earth, which makes him some 2,931 years old around the time of the War of the Ring, which happened over 3,000 years into the Third Age of Middle-earth.
The longest living Dwarf was Dwalin who lived to become 340 years old, 80 years older than the second oldest Dwarf. Hobbits lived a very quiet and uneventful life compared to other races and since they had the habit of drawing their family tree their age distribution is fairly narrow.
Gandalf's age is impossible to determine, but he's likely existed for at least 10,000 years, making him much older than Legolas.