First Aired: Sep. 20, 2005 on The WB
Summary: Sam and Dean head to Colorado to check out the coordinates that their father left them in his journal. When they arrive, they pose as park rangers to investigate the disappearance of three campers and soon discover that they're up against a Wendigo, a mythical creature from Native American…
- Goof (factual errors): The brothers use Anasazi symbols to fight the Wendigo in Colorado when the tribes were actually located in the Southwest. Dean says that Wendigo are typically found in the Northeast of the country (Minnesota) and he's never heard of one as far west as Colorado.
- Goof (continuity error): In the beginning, when Tommy is filming his message to Hailey, his dialogue says: "Hey, Hailey. Day 6. We're still out near Blackwater Ridge. We're fine, keeping safe, so don't worry. Talk to you tomorrow." But when Hailey plays the recording for Dean and Sam, the message becomes: "Hey, Hailey. Day 6. We're still out near Blackwater Ridge. We're fine, keeping safe, so don't worry, okay? Talk to you tomorrow."
- Goof (errors made by characters, possibly deliberate errors by the filmmakers): Upon arriving in Colorado, while the Winchester brothers are at the ranger station gathering information, Sam states that they are natural resource majors at UC-Boulder. The school is actually known as CU-Boulder.
- Goof (factual errors): It is stated several times that Grizzly Bears are the cause of several deaths in the area (in Colorado), and a picture of a large dead bear is shown in the Ranger's office. Grizzly Bears are not indigenous to Colorado, only American Black Bears are; a smaller, less vicious species of bear.
- Goof (errors in geography): There is no "Black Water Ridge" in the Lost Creek wilderness of Colorado. The coordinates left by their father (35, 111) actually meet in Arizona.
- Plotwise, this episode is very similar to "The X Files" (1993) Season 5 episode "Detour" in which Mulder and Scully encounter some nasty creatures on a camping trip. _Supernatural_ has often been compared to "The X Files" (1993) with 2 lead characters investigating the paranormal. It is also filmed in Canada so many of the actors and directors from the earlier series show up in this one.
- When discussing how wendigos came about, Ben refers to the Donner Party. The Donner Party was a group of pioneers headed west in a wagon train to California in the winter of 1846 who became trapped by an early snow storm while crossing the Sierra Nevada Mountains. They were stranded for four months and resorted to cannibalism to survive.
- In the beginning two guys are playing a first person shooter video game against each other and one claiming the other is cheating. A reference to the pilot of Threat Matrix. Executive producer John Shiban was a writer for that show.
- This is Alden Ehrenreich first role.
- One of the candles on Jessica's grave has "Virgen de Guadalupe" on it. This is based on an apparition of a brown-skinned Virgin Mary who appeared to future saint Juan Diego in 1531 and spoke in Nahuatl, the local language. She is also sometimes believed to be The Woman of the Apocalypse. That might be appropriate considering Sam's family background. The presence of this candle implies that Jessica could be Roman Catholic.