Factual error: Early in the episode, while Jason is at the log flume, power lines and transformers are visible to the left. (00:01:15)
Factual error: The show is set in the 1860s. However, in several episodes, trail boss Gil Favor can be seen wearing Wrangler jeans. The Wrangler brand was not introduced until 1947.
Stage West - S1-E6
Factual error: In the background, in the scene when Simmons is talking to the stage driver, you can see cars driving by on a road in the background. (00:12:06)
Factual error: Two women come into town somewhere around San Luis Valley, Colorado with ring-necked Pheasants. The pheasants were brought into US a few times (East coast, CA) but really did not get established until late 1880s and in Colorado likely in the late 1890s (eastern and southwestern). The problem is it supposedly depicts the year 1880. They would more likely may have found some Gunnisons Sage-Grouse nearby or rabbits. (00:16:10)
Factual error: Lucas and Mark are traveling on what is said to be the first train to ever reach the town of North Fork. The episode is set in the 1880s and the train shown was part of the M.K. & T. Railroad, which at that time was operating only in Missouri, Kansas, Texas and Oklahoma. The fictional town of North Fork is located in New Mexico Territory.
Factual error: In this final made-for-TV mini-series of the 'Lonesome Dove' franchise (the one with James Garner as Woodrow Call), they show the crazy renegade teenage killer hanging Judge Roy Bean from the beams outside the front of his own store/courthouse. Bean died peacefully in his bed on March 16, 1903, after a bout of heavy drinking in San Antonio.