Bigfoot Captured on Tunnel Security Camera in Cascades

Posted Saturday, July 18, 2026

By Squatchable.com staff

So there's a new piece of footage making the rounds that has the community buzzing, and honestly, this one is hard to ignore. The Watchtower Files channel on YouTube dropped a video that has to be one of the most unsettling tunnel captures I've seen in a while. If you haven't watched it yet, do yourself a favor and check it out because the context alone is worth the click. Here's the setup. A tunnel technician named Mason is working the night shift at Oso Ridge Tunnel, a two-lane state route cutting through a ridge in the Cascades. The tunnel runs just under eight-tenths of a mile from portal to portal, and on this particular night, the maintenance crew has already cleared out. Mason is alone in the control room running a quiet camera calibration, the kind of routine work he's done for sixteen years. Nothing out of the ordinary until it suddenly is. Around 12:37 a.m., camera two picks up something moving through the westbound lane. The figure is walking upright, less than 700 feet inside the mountain, with wet hair hanging from its arms. One broad hand is opening and closing beside its thigh, almost like it's processing the environment. The tunnel lights give us scale here, and that's what makes this footage so compelling. The figure's head passes above a yellow service marker fixed seven feet up the wall. Seven feet. That's not a person hunched over. That's not a bear standing on its hind legs for a moment. That's something tall. What really sells this clip is the audio element, or rather, the lack of it. The cameras have no audio, so Mason is watching in silence as this figure moves closer. Then, before it even appears on camera one, he hears it. A dull impact strikes the tunnel floor, and a loose access panel answers with a metallic tap. Another pulse follows, stronger this time. Then camera one refreshes and a wet black head and both shoulders rise into the far edge of the picture. The pacing of this video is what makes it work. Watchtower Files doesn't rush it. You get the full procedural buildup, the radio check-ins with Allison at the regional traffic center, the freezing rain starting to tap against the windows, the moment Mason realizes the creature is on a straight route toward camera one with nowhere between the two housings for a body that size to leave the bore. You feel the tension building because the storyteller lets it build. There's also something genuinely interesting about the tunnel environment that adds credibility to this kind of footage. Tunnel security systems are designed for continuous monitoring, with overlapping camera coverage and automated incident detection. Unlike a trail cam triggered by motion in the woods, these systems are calibrated, timestamped, and tied into regional traffic management. The infrastructure exists. The cameras don't lie about timestamps. And the geometry of the bore means there's no convenient tree line or shadow to hide a person-sized object. For anyone who's spent time reviewing tunnel and infrastructure footage, you know these systems are rarely faked because the chain of custody is so verifiable. Maintenance logs, radio traffic, regional oversight, the footage has to fit into a documented operational timeline. That's part of what makes this video worth sitting with. The moment where Mason moves away from the window so his reflection doesn't show on the glass, the moment he puts his hand back on the deadbolt even though he just checked it, those small human details are what elevate this beyond a simple creature capture. This is a person alone in a concrete block house at the lower end of a tunnel, realizing that whatever is walking toward him is faster than anything he's ever measured on that road. Watch the full clip for yourself. The pacing, the radio chatter, the moment the second camera catches the head and shoulders, it's all there. And let me know what you think. Because footage like this, captured on infrastructure that wasn't designed to look for anything like this, is exactly the kind of evidence that keeps the conversation moving forward. Stay curious, friends. There's more out there than the maps show.