Pasquinel is camping by a river wearing a dark jacket. A Pawnee Indian shoots him from behind with an arrow and he hurriedly paddles away in his canoe with an arrow in his back. The next scene shows a Cheyenne Indian pulling the arrow out of Pasquinel's back and he is wearing a dark vest. It would be nearly impossible to take a jacket off with an arrow sticking out of your back.
At the beginning of "The Winds of Death" episode - there is a street scene that takes place in 1911 and the cowboy named Burns can be seen wearing a brown jacket and an odd shaped black cowboy hat. The episode moves ahead to the year 1933 - where Burns makes a pass at Soledad Marquez and gets in a fight with her brother - he is still wearing the same hat and jacket 22 years later.
McKeag drops his gun on some rocks and breaks the butt of the rifle. Pasquinel fixes it with a rawhide patch. A bit later, they encounter three Ute Indians and as McKeag raises his gun to fire at them, the rawhide patch is gone and the gun is as good as new.
During "The Crime" episode - the same boxcars that were used to unload Messmore Garrett's sheep during "The Shepherds" episode are still on the railroad tracks. "The Crime" episode takes place about 20 years after the sheep were unloaded in town.
During the "Winds of Fortune" segment, Clemma Zendt returns to town on the train. It is a long scene but the train cars keep changing even though the train never leaves town. One time there are passenger cars, a bit later there are stock cars, then there are no cars and then there are passenger cars again. All within a few elapsed minutes of action from the same scene.
Bufe Coker and Laura homestead a small shack near the Rattlesnake Ciffs. They have only been there a few days and already have a few cornstalks that have grown above waist height. Corn would take at least 6 to 8 weeks to germinate and grow that tall.
During "The Longhorns" episode - it was a well known fact that loud or abrupt noises could startle a herd of cattle and cause them to stampede. Yet several times throughout the episode there was a good amount of yelling and hollering between the men as well as other loud noises and gunfire - sometimes at night - and this would not have occurred on an actual cattle drive.
It might make for good television but mountain men Jim Bridger and James Beckworth never rode together or partnered up as depicted during the "The Yellow Apron" episode.
Pasquinel and McKeag are rowing and floating their canoe downstream after they leave St. Louis and head up the Missouri and Platte Rivers. In actuality, if they were heading back to the West on the rivers, they would have had to row upstream.
On the cattle drive, the cowboys are trying to keep the cattle away from the "alkali" pool of water. If the water was really alkaline, there would have been no green grass growing along the banks of the pool.
Oliver Seccombe builds a stately and well landscaped mansion with the money that he embezzled from the English investors. The mansion was built on the prairie and some of the oak trees on the spread have grown to more than 50 to 60 feet tall in a 5 to 10 year time span. In actuality, oak trees are not native to the Colorado prairie and it would take 50 to 60 years for the trees to grow that tall.
As Brumbaugh brings the Takimoto's to his farm for the first time - a detectable problem can be seen on the camera lens. The viewer can see two black dots in the upper left corner of the picture that are caused by dirt on the lens.
During "The Massacre" episode, Colonel Skimmerhorn is walking through the streets of Denver and there is a large crowd of people cheering and waving 50 star United States flags. There were no 50 star United States flags in 1864.
As Potatoes Brumbaugh walks from his field to talk to Jim Loyd, you can see a truck going down the road in the far background.
During "The Winds of Fortune" episode, Hans Brumbaugh is in his sugar beet field talking to Tranquilino Marquez. In the background, the viewer can see a cornfield that has been irrigated with a central pivot irrigation system. Central pivot irrigation systems did not go on the market until 1952.
In the market scene supposedly set in Lancaster County, PA, the slanted wall style horse drawn buggy that turns the corner can only be found in Ohio. It also has drum brakes and red plastic tail light lens, common among the 21st Century Amish but not Mennonites of early 19th Century Pennsylvania.
As Earl Grebe plows his field with two horses and a steel plow - the viewer can see the tire tracks the film crew left in the field while filming this scene.
R. J. Poteet and John Skimmerhorn are talking to the boys in Jacksboro about going on the cattle drive and a small, white porta-potty can be seen in the background.
Phillip Wendell is swimming in the creek in his underwear, but you can see the outlines of a black thermal wetsuit under his wet underwear.
During "The Yellow Apron" episode - McKeag is snowbound by himself in a cabin in the mountains. He realizes that he is trapped in the cabin from a recent snowfall and he breaks his way out. Once he is outside - the viewer can see the footprints in the snow from the crew as well as the marks in the snow that the crew made while piling it on top of the cabin.
During "The Winds of Death" episode - Earl Grebe is in a great amount of debt to Phillip Wendell and tells his family that he will have to sell his horses. Moments later he can be seen driving a brand new tractor in his field. If he were in such a financial hardship, he would not have been able to buy a new tractor.
Jim Lloyd had been living in Centennial for 13 years before Levi "introduced" him to Hans Brumbaugh while they were observing the remainder of Lost Eagle's tribe moving to Wyoming. As often as the two came to town and frequented Levi's store, they should have met long before this time.