The section of rail that goes through the Carrizo Gorge is one of the main reasons the San Diego and Arizona Railway was called the "Impossible Railroad".   There is a rich history around this rail that dates back to the track's completion in 1919.  It is a very interesting read to check out the The San Diego Railroad Museum website.

Directions:  
    From San Diego take Interstate 8 about 70 miles east.   Take the Jacumba exit.  There are two gas stations at the exit.  Parking in the dirt parking lot across the street from the gas stations.

Ride Notes:  

I would like to start off my thanking Eric Hagerty for providing most of these pictures.  

Let me start off my saying this is an exceptionally easy ride as far as mountain bike rides go.   You could easily do this ride on a beach cruiser with the exception on few optional single tracks that bypass the tunnels.  These single tracks were not always optional but all of the tunnels have been reopened with the exception of one of them.   These single tracks have some extreme exposure where the penalty for failure could be extreme.  The ride is a consistent two percent grade so you will barely notice any elevation change along the tracks.  

We started this ride out in the parking lot across the street from the two gas stations at the Jacumba exit off the I-8.  From here we headed west along a dirt road the after 1.5 miles went under the freeway.  You will see the railroad tracks off to your left.  As you come into the De Anza Springs resort (a clothing optional place), you will see a small trail heading across the lawn.  Take that out to the tracks.

Once on the tracks it is pretty darn hard to get lost.  The first trestle you come to (which is probably the shortest as well) is the only trestle that does not have a suitable grating on the side to ride on.  So for this one you will have to ride on the tracks.  Riding on the steel grating of on the trestles take a bit of getting used to.  Your knobby tires will wave back and forth slightly as they track along the grating.  Combined with the fact that can look straight through the grate to ground sometimes hundreds of feet below, this can give you a very uneasy feeling they may want you to tense up and try to correct when you tires drift.   Just relax and let the tires come to their own arrangement with the grating.  You with find that you will ultimately keep going in the right direction.  Also there are cable wire railing on the side of all but two trestles so there will be something there to catch you.  But I would not chance having to trust them.

The entire ride is interspersed with both tunnels and trestles.  Some of the tunnels are quite long and you should bring a light as the get absolutely bitch black.  To quote the ever-wise Sponge Bob Square Pants, "This is not normal darkness, This is advanced Darkness" 

Trestles Trestles Trestles

One of the main attractions on this ride is the Goat Canyon Trestle.  It is the longest curved wooden trestle in the world and the second longest wooden trestle.   At somewhere around 200 feet high and 750 feet long it is a very impressive sight to see.  If you are afraid of heights the trestle could wig you out a little.  

Here are some views of some of the other trestle running along the steep slopes of the gorge.

Tunnels Tunnels and more Tunnels

About 2 miles past Goat Canyon you come to some overturned cars off down the side of the gorge.  After initially posting this page, Duane Dixon emailed me and said that according to the folks at the San Diego Railroad Museum these rail cars where used in a couple of movie stunts

To the left are some more box cars that meet had an interesting demise.