''Mackenna's Gold'' is a Western based on an American novel by Heck Allen (billed under the penname of Will Henry) that involves the legend of a lost canyon of gold and the diverse group of people that join forces to go in search of this untold wealth. Creator/GregoryPeck stars as Sam Mackenna, an ex-Marshal of the town of Hadleyburg, who takes the secret of "Canon del Oro" into his hands when a dying old Apache shaman leaves behind a map that details the route to the Apache territory. Mackenna is unexpectedly captured by a Mexican bandit named Colorado (Omar Sharif) and his cutthroat gang of Apaches and outlaws; Colorado has long sought Mackenna's death since he drove him out of the state many years ago. But, when he finds out that only Mackenna knows how to reach the infamous canyon of gold, he has no choice but to keep him alive. Along the way, many infected with "GoldFever", including renegade soldiers and gentlemen from town, are caught up in the adventure. Also starring Telly Savalas, Camilla Sparv, Julie Newmar, and Ted Cassidy, as well as a stable of Hollywood veterans in supporting roles, including: Keenan Wynn, Lee J. Cobb, Raymond Massey (in his last big screen role), Burgess Meredith, Anthony Quayle, Creator/EliWallach, and Edward G. Robinson (in one of his last movies)

Filmed in 1969, ''Mackenna's Gold'' was made during a period when the Western era was slowly drawing to a close. Therefore, unless a Western was a magnificent feat in comparison to ''Film/TheWildBunch'' or ''Film/OnceUponATimeInTheWest'' also produced that year, it was quite forgotten. Originally intended as a roadshow picture ''Mackenna'' was filmed at an overall length of three hours, and cut down to just a little over two hours by a nervous studio, who felt these kinds of movies were going out of fashion. Amongst the footage included for this alternate version (currently unavailable) is an entr'acte, intermission, and closing music.
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!! Provides examples of:

* AdaptationNameChange: In the book, Colorado was "Pelon", Inga was "Francelia", and Sergeant Tibbs' first name is Mickey. Even Mackenna's name is different here in the movie; on the back of the DVD cover, it is said that Mackenna's first name is Sam, while it is Glen in the book.
* AffablyEvil: Colorado. Possibly Sergeant Tibbs as well.
* [[spoiler:AnyoneCanDie: And indeed anyone does.]]
* AndStarring: "in alphabetical order, the Gentlemen from Hadleyburg..."
* BerserkButton: Mackenna and Colorado like to push each other's. For Mackenna, it's harming Inga, and for Colorado, it's telling him there's no gold.
* [[spoiler:BittersweetEnding: Although the Canon del Oro collapses (and thus buries the gold fortune), as Mackenna and Inga ride away at the end, the saddlebag on Mackenna's horse is shown to be full of the large golden nuggets that Sergeant Tibbs had been loading into it.]]
* BlastingItOutOfTheirHands: When Colorado and Mackenna first encounter each other in the desert, [[spoiler:Colorado shoots Mackenna's gun out of his hand.]]
* BookEnds: The film opens and closes with a shot of Canon del Oro.
* CavalryOfficer: Sergeant Tibbs and the United States Cavalrymen.
* CompositeCharacter: Ben Baker and the Older Englishman are Ben Call and Raoul Desplains in the novel.
* CoolOldGuy: Prairie Dog, The Preacher, and Old Adams (naturally, it's Edward G. Robinson).
* DeadpanSnarker: Mackenna.
* DisguisedHostageGambit: [[spoiler:The drunken Pima Squaw is dropped off in Sergeant Tibbs' camp as a distraction so that the rest of the gold hunters can ride by unseen.]]
* DroppedABridgeOnHim: You have a delicious ensemble cast, which is only made better when the veteran actors playing the townsfolk enter the movie about 45 minutes in. You expect each of them to get a few rather terrific scenes. [[spoiler:Nope. About fifteen minutes later, anyone who isn't Mackenna, Colorado, Inga, Hesh-Ke, or Hachita is killed off rather anti-climactically.]]
* EccentricTownsfolk: The men from Hadleyburg.
* EnsembleCast
* EvilIsHammy / LargeHam: Omar Sharif, naturally.
* EvilMinions: Sanchez and Avila. For the Apaches, Hachita.
* FakeNationality: Omar Sharif (an Egyptian) and Keenan Wynn (of Jewish-Irish background) as Mexicans; Julie Newmar (of Swedish-French descent), Ted Cassidy, and a few other obviously Caucasian actors as Apache Indians (hidden under layers of brown makeup).
* FiveManBand: [[spoiler:The ones who live to see the gold, at least.]]
** TheHero: Mackenna
** TheLancer: Colorado
** TheSmartGuy: Sergeant Tibbs
** TheBigGuy: Hachita
** TheChick: Inga
* GettingCrapPastTheRadar: The skinny-dipping scene at the waterhole is pretty suggestive.
* GoldFever: The driving force of the plot.
* HeyItsThatGuy: Several, since the movie's poster boasts the famous names of many high-profile stars and character actors alike.
** I didn't know that Lurch converted to Apache culture after ''Series/TheAddamsFamily'' was cancelled. Catwoman is an Apache as well, although this time she actually is quiet as a cat.
** Amongst the Hadleyburg townsfolk are [[OntheWaterfront Johnny Friendly]], The Penguin, [[TheGoodTheBadAndTheUgly Tuco]], and [[LittleCaesar Rico]].
* HostageSituation: Mackenna himself is Colorado's hostage throughout the entire movie.
** [[spoiler:Again, the scheme involving the Pima Squaw.]]
* {{Jerkass}}: Colorado, who is quite possibly a JerkWithAHeartOfGold.
* KilledOffScreen: Numerous characters fall under this.
* [[spoiler:KillEmAll: Only three named characters survive the events of the film.]]
* TheLoad: Inga.
* OnlySaneMan: Mackenna considers himself this because of his apparent immunity to GoldFever.
* PreacherMan: The Preacher.
--> ''My share (of gold) will build a tabernacle to the Lord. A temple of the true Gospel. Maybe a whole strong of them throughout the territory!''
* TheQuietOne: All of the Apaches count as this.
* RamblingOldManMonologue: Old Adams' monologue about his trip to Canon del Oro before he was blinded is enough to spark the hunger for Gold Fever in just about anyone.
* RightUnderTheirNoses: [[spoiler:How the gold hunters get past Sergeant Tibbs and the cavalry.]]
* SceneryPorn: Some of the beautiful Arizona scenery during the opening credits. Canon del Oro also counts.
* ScrewThisImOuttaHere: [[spoiler:Mackenna, Inga, and Colorado when the canyon is collapsing at the end. None of them stops to retrieve any of the gold; they simply rush to their horses and dodge the falling rock as they make their way towards the exit.]]
* ShootTheHostage: [[spoiler:Subverted, as it is never quite clear what happened to the hostage squaw that was dropped off in Sergeant Tibbs' camp.]]
** [[spoiler:Swapped around later as well when, rather than shoot the captive Inga, Sergeant Tibbs kills his two troopers instead.]]
* ShowDontTell: Hesh-Ke. She makes it pretty clear without words that she wants Inga dead so that she can have Mackenna all to herself.
** Vice versa, Monkey wants Mackenna dead so that he can have Inga all to himself.
* TheSociopath: Colorado.
* SparedByTheAdaptation: [[spoiler:Colorado.]]
* ThemeSong: "Old Turkey Buzzard, flying, flying high..."
* ThoseTwoGuys: The two Englishmen.
* TitleDrop: The Narrator at the beginning -- ''"then for a while back in 1874, they called it Mackenna's Gold."''
* TheVoiceless: Hesh-Ke (a mute).
* WelcomeBackTraitor: [[spoiler:Colorado to Laguna, after the latter reveals that he double-crossed Colorado in disclosing the entire gold huting scheme to Ben Baker. Colorado welcomes him back with a fatal gunshot.]]
* WhatHappenedToTheMouse: A lot of the characters disappear following the [[spoiler:cavalry ambush.]]
* TheWildWest: AND HOW. Apache Indians, United States Cavalry Soldiers, and deadly spirits.
* WithFriendsLikeThese: Colorado also seems to treat Mackenna like a dear friend, even though it's outright obvious that his intention is to kill him.
** Although, he and Ben Baker are likely this.
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