Continuity mistake: While James is arguing with Tuco in the desert about the twins the sun changes in several shots.
Factual error: Tuco Salamanca's gun is a Taurus Raging Judge. Season 1 - as well as Season 2 - where Tuco's gun is prominently featured, are set in 2002. The Taurus Judge series wasn't produced until 2006.
Continuity mistake: Out in the desert when Jimmy is tied up, they decide to let him loose. Tuco's thug goes behind him, and James has his hands duct taped behind is back. The thug bends down to cut the tap, and then the camera cuts to a rear view. As the thug pulls the tape away, Jimmy's hands are suddenly instantly in front of him at his sides and he's leaning forward.
Answer: The bulldozer could be disassembled, the individual pieces carried down, and then reassembled once underground.
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