Skip to ContentBottomless? Bodies never float? Bodies never decay? The lake’s real depth and temperature, from UC Davis and the Forest Service. Story first, then the record.
Checked November 3, 2026. Every claim below names the page it was read on.
Half trueNot a verified fact until the answer says so
The Story
Locals and visitors repeat three things: Lake Tahoe is bottomless, bodies in it never float up, and bodies never decompose. In 2006 the Tahoe Daily Tribune put the first two to local officials [4].
What Is Actually True
- Bottomless: no. The Forest Service gives the deepest recorded depth as 1,645 feet (501 meters), with 22 miles of length, 12 of width, and 72 miles of shoreline [1]. A UC Davis fact sheet gives the same maximum and an average depth of 1,000 feet, plus a surface area of 191 square miles [2]. The Forest Service says the lake holds an average of 37 trillion gallons [1]. USGS Cal/Val, citing Wang et al. (2020), lists a mean depth of 333 meters, volume about 156 cubic kilometers and area about 490 square kilometers [3].
- Cold at depth: yes. The UC Davis fact sheet says that below about 600 feet the water stays a near-constant 41 degrees F, and that surface water reaches 65 to 70 degrees in August and September and cools to 40 to 50 degrees in February and March [2]. The Tahoe Daily Tribune reported USGS data of a constant 39 degrees between 600 and 700 feet [4]. The two sources differ by two degrees.
- Bodies never float: partly. Officials quoted in 2006 said people lost in the lake usually do not come back up, one county official said “we can’t go down that far,” and one sheriff’s official said some victims never surfaced [4]. A UNR pathology chairman, Dr. Anton Sohn, explained that decomposition gases can make a body rise “like a balloon,” that bacteria do not thrive at half of body-warm temperature, and so cold slows that process [4].
- Bodies never decompose: no. The same article says a racer who died in a 1980 crash was recovered a few weeks later and described as “perfectly preserved” [4]; that is one case, not a rule.
- Clarity: UC Davis TERC’s 2025 report put the annual average clarity at 69.2 feet, up from 62.3 feet in 2024 [5]. The Forest Service says that in the 1860s objects 100 feet down could be clearly seen [1].
Still Unconfirmed
Any TERC statement on bodies; the lake’s volume in acre-feet from TERC’s own page (the TERC pages returned an access error); the deep-water temperature (39 or 41 degrees F, sources disagree).
Frequently Asked Questions
How deep is Lake Tahoe?
Deepest recorded 1,645 feet (501 meters) [1][2]. It is not bottomless.
How cold is the deep water?
About 41 degrees F below roughly 600 feet per UC Davis [2]; the Tribune cites USGS at 39 degrees [4].
How clear is Tahoe now?
UC Davis TERC reported a 2025 annual average of 69.2 feet [5].
Sources
- About the Lake Tahoe Basin, USDA Forest Service. Read 2026-11-03.
- Fact sheet: Tahoe Center for Environmental Sciences and Lake Tahoe, UC Davis. Read 2026-11-03.
- Lake Tahoe (Cal/Val site page), USGS. Read 2026-11-03.
- “Lake’s depths hold many dead bodies: Officials report most corpses don’t surface if lost in Lake Tahoe” (William Ferchland, 2006-02-06), Tahoe Daily Tribune. Read 2026-11-03.
- UC Davis Tahoe Environmental Research Center releases 2025 Lake Tahoe Clarity Report, Tahoe Regional Planning Agency (posting of the UC Davis TERC report). Read 2026-11-03.
Cite this page: It’s Reno editorial team, “Lake Tahoe’s Cold-Water Myths,” itsreno.com/legends/tahoe-cold-water-myths/, checked November 3, 2026. Legends are labelled as legends; ghost stories are never invented.