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.


Apparently spelling no long dictates intelligence?? I wish I could just figure out how to stop getting notices of idiot responses. Just keep comments to a logical response. No need for proof of dumb ass brain sources.

i went about 6 moths ago and caught a catfish with my uncle only to be fined for not having an adventure pass...we saw small shad swiming around and that catfish but that was it

why did you use your uncle as bait?

Taking my son fishing there today...let's see what happens! Maybe we'll catch ourselves an unknown species of fish....or an alien!

I've been to this area many, many times over the last 25 years. Still a great place to quail hunt. The lake is not very friendly due to steep banks and heavy vegetation. It's not called lost lake for nothing, it's almost like a hole that opened up with high steep banks enclosing it hiding it from view.

On the north side atop the steep bank over looking the lake there is (or was 10 years ago) a touching memorial to a young womon who passed away too young. Her family made a small cross that is hidden by the brush unless you right on top of it. It had a picture and a short eulogy, her ashes were left at the lake. Perhaps a fire or weather has taken it but it’s still in my mind. RIP.

Sad, but kind of freaky that her parents would leave her ashes there where people go to have fun.

I want to know more about the history of lost lake prior to the 1900's and what other occurances has taken place since that time period.

My dad took me & my 2 brothers to Lost Lake all the time and go fishing, shoot crawdads with bebe guns and smoke some bomb ass weed eventually when i became a pot head at 18. i just have so many memories there and enjoy every moment there thinking about the good times. my parents told me there is a school bus way way way down there at the bottom of the lake thats been there for years! i'd go swimming there too. can't wait to go fishing again.

A co-worker told me that her two baby girls drowned in this lake in 1974. Has anyone heard of this?
I'm trying to help her heal from it and any information would be greatly appreciated.
Obviously the pain still exhists in her life, such a tragedy.

Yes! I believe her and her huband were our neighbors! I believe I was 7-8 and everyone was so dad. My parents were chuck & Mary bowers.


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