The Mystery of Lost Lake of the Cajon Pass

It is not known to many people, but it is still possible to use the old highway up through a portion of the Cajon Pass. Present day highway 15 runs well above old 395 and Historic Route Highway 66. Such rustic areas as Blue Cut and Halls Ranch (Yes my Family again), and Sullivan's Curve still exist.

As you drive up the badly surfaced road from Devore (Use the Kenwood Exit from the Northbound 15 and make a left, pass under the 15 and then make a right on Cajon Blvd [old 395 & route 66]) you notice that for the most part you are driving on what would be the southbound lanes of the old 4 lane highway. As you come around the curve at Blue Cut you notice that there is now a mountain sitting over the right-hand lanes into the center divider. You might think that this is ample proof that the San Andreas Fault zone is alive and moving. But you would be wrong. It is actually the San Jacinto Fault Zone that straddles the highway. The San Andreas is still one mile ahead.
Two Faults zones so close together and visible? As you proceed north you notice that the entire area between the faults is moving to the north and at different speeds. Only 2 or 3 inches a year, but they are moving. So much so, that railroad crews from both the Union Pacific and Burlington Northern Santa Fe, have to go out twice a year and reset the tracks. Otherwise, the train tracks would bend out of shape, just like old 395 has.

As you proceed, you will see a sign that says 'Lost Lake'. It also says private road so most people ignore it and just keep heading up towards Sullivan's Curve. Sullivan's Curve by the way, is a favorite Train Watcher area and has also been the scene of several major train accidents over the years. The best way to get into this area is to exit highway 15 at Cleghorn Pass Road, make a left under the freeway if you are going north bound that is and then make a right on the first roadway you see. This will take you back to a triple track bypass area, a small yard, and the beginning of the lower end of Sullivan's Curve.

But if you take the time to make the left turn onto the dirt road and cross the triple set of tracks that tend to hide it's route, you eventually find a quiet little area that should not exist. For there are no streams, creeks or rivers that feed into Lost Lake. The water seeps up from beneath the ground. A direct result of two major earthquake faults zones passing within a half mile of each other.

Some say that Lost Lake has no bottom, that it feeds directly from the center of the earth. The water is also very cold, below freezing even in summer time. Fire crews have used its water supply to help fight fires, and they have never noticed a drop in water levels. It always stays the same, even in heavy rain seasons. And snow fall has no effect on it. But it has never frozen either.

Lost Lake is surrounded by lush grassy vegetation, some what like what you might see back in Kentucky or Tennessee. In fact Kentucky Blue Grass grows all around the lake.

As you drive further into the narrow valley you realize that both fault zones are coming together. All of a sudden you run into a wall of a mountain that blocks your way. You can climb up this 500 foot high rock fall and look out over the valley you have just passed through. To the northwest are the 10,000 peaks of Mt Baldy, Cracka Ridge and the Mountain High Ski area. As you hike through the area you become aware of how insignificant you are amongst the grander of the Fault Zones, the Mountains and the trees.


I grew up in Lytle Creek. I 've been to Lost Lake many times. It is a mysterious place indeed. I used to ride motorcycles around the lake in the late 70's. There were many trails at that time. I grew up seeing the bikers partying and raising hell out there. I've swam there a lot and heard a lot of stories about deaths and drownings at the lake and that it was bottomless.
I remeber as a boy someone built a sort of big long wooden diving board on the up canyon end of the lake. It was only their for maybe a year. Does anyone else remeber that?

As children, my parents took us up to Lost Lake, hiking around the mountains, then a swim in the lake, we all had lots of fun, yes there was an returnees about it. You hear so many weird stories, my parents were childhood friends, they used to go to Lost Lake, and ditched school, that's where they went, they took us their as kids. I took my kids there, now its really gotten bad, too many dangers lurking there. Not for me anymore.

As far as finding the depth of Lost Lake, it depends at what point you probe. I dove pretty deep in 2001 with no bottom in site. The warning is that there is thick undergrowth that one could get tangled up in. If you panic and thrash, it could keep you underwater. Could be the answer to questionable drownings.

A biker club owns a house on Swarthout Canyon Rd. The mailbox gives them away. Down the road a bit is a Korean 24/7 Prayer Ministry. Been there to fast and Pray after I was rescued from SATAN. LOL Really... Some of us from Muscoy used to go up there from time to time to chill, etc. Ive seen some interesting people here before.

Actually, there are reports of the bodies of clones at the bottom of the lake. It should be investigated forthwith.

if you you look at it from googlearth stand point. Its obvious that basin was full of water at one time. of the dumbest post ever!!!!

How safe is Lost Lake for a visit and for fishing nowadays?

I visited lost lake in the late 80"s stayed the night with a bunch of friends. A man scuba dived with a rope about 250 feet long.that rope went about half way and the man returned.he says that he has never had such an spooky feeling ever in his life but He also stated that there was caves below that He was afraid to I'm a believer that somewhere it is bottom night some pretty freaky people came out. We were told that they worshiped Satan. DOES ANY BODY EXPERIENCE THAT.IT WAS A CRAZY NIGHT

The people there are cannibals and it was called The Colony


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