Explore To Do - view hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

To Do Map

I gave this hike a 4 star instead of 3 because of the awesome trek you have to climb the last 1/4 mile to get to the actual peak. Definitely challenging! But the hike itself wasn’t hard at all and the views weren’t spectacular. I am grateful for this app bc I wouldn’t have been able to find the trail to get to the actual peak- the trail is very steep and bushy. Highly recommend pants and long sleeve and a hat- saved my life.

It was a fun one time hike but I don’t think I’ll be doing this one again. #scenerysnob

Bridge, tunnels, and abandoned train cars are really, really cool. The rest of the hike becomes really, really boring! It's 14+ miles of COMPLETELY flat walking. The only elevation gain was climbing 2 small hills because 2 tunnels are blocked. So don't expect any cardio.

The nudist colony is also pretty interesting. Well-kept, welcoming community with funny signage. There's a buzzer at the gate, you drive to the office (follow signs), talk to the nice receptionist and pay $5/person (cash or card), and go back to the gate to park and start your walk. You'll hit the train tracks after 1 minute. Take a right (North) and follow the tracks the entire way to the trestle bridge (7 miles). There are abandoned cars less than 1 mile into the hike, then you'll have some fun walking through some tunnels of varying lengths.... and then the boredom of monotonous walking will start creeping. And obviously it gets worse on the walk back. The tunnels are your only reprieve from endless flat walking.

In hindsight, mountain bikes would've been PERFECT!

We didn't encounter any security (Saturday in mid-Jan 2019). It took us 7 hours out & back. That's a fast walking pace plus adequate time to stop and explore the cars, tunnels, and bridge.

There are 2 tunnels that are blocked off. The 1st you'll scramble over a small hill. We went just to the left (West) of the tracks and came down just to the East of the tracks. Pretty easy, but allow space between people in case you kick a rock down the hill. The 2nd tunnel you'll follow an obvious walking path around the hill. It's a long wraparound to the left (West) of the track. Careful of cacti.

All of the structures are in good condition. Most of the bridges you cross have metal grating for walking. But watch your step! If you're not paying attention, there are gaps and some trip hazards. ... and there are caved-in tunnels that you'll see next to the current track route. They are cool, but be careful because if they caved in once....

Note there is zero water and zero shade at high-noon except the tunnels and cars. However in the winter, the morning sun was behind hills the the southeast for much of the hike. Most of the hike is along the western side of the hills.

Enjoy! Too bad it's not a 5-mile round trip hike. Because the unique sights are awesome, but they're too few & far between. If you have mountain bikes, I HIGHLY recommend going that route instead.

Great hike with breathtaking views! A lot of bouldering and narrow paths to get to the peak.

Nice short hike with incline.

This is a good hike. Challenging and not many areas to stop and take a break. There aren’t too many people on the trail, which is great since the trails is pretty narrow in some spots. Seems like the rain has washed lots of smaller boulders onto the trail, so be ready to step over those. Shoes with good tread are a must on the rocky trail.

As advertised: a steep rugged trail with an unspoiled summit. The views are 360° with all the peaks of San Diego gathered round you like a host of witnesses.

You might consider hiking boots as my ankles took a beating in trail runners. I highly recommend this hike. Took me 2 hrs.

Forget about this as a waterfall hike. A beautiful easy hike through Milk Ranch and Middle Peak Trails with a lot of wildlife and nice views. You can hear the waterfall less than half a mile away at the ‘turn off’ point off the fire road, but there no reasonable or enjoyable way to access the falls through brush and fallen massive trees. Until some folks get in there with chainsaws and heavy equipment to clear the path down, don’t bother. There is good reason the falls were taken off the most recent 5th edition of Afoot and Afield San Diego County hiking guide.

Such a great hike with an amazing view at the top. Easy to follow, but challenging incline. And almost nobody on the trail - which is always a bonus!

Excellent hike with incredible views. Be sure to go all the way to the second peak! Incredible to do right at sunset on the way down. The sign for the trail is tiny! It’s just a sticker on two metal posts across from an area to park (small pull off on the dirt road leading to the trail)

1 month ago

Accidentally followed this trail when we missed the path for 3 Sisters Falls. The trail was not marked at all and slightly overgrown, but the view from the peak we did make it to was amazing.

Because we didn’t plan on stumbling through this trail, we didn’t have a map. I don’t think we reached the real eagle peak, so we’ll have to do it again for real! We didn’t pass anyone else on the trail and it was completely suitable for our dog.

Went on a cool December day-probably wouldn’t recommend it in summer heat.

Hiked to the trestle today. Gates on two tunnels. Encountered railroad agent in service car on tracks. Was friendly, but let us know the tracks are closed and we were trespassing and subject to fines. Beware.

1 month ago

Absolutely loved this hike! Went on a Monday morning and didn’t see another soul. Just about an hour round trip with a mix of running and hiking. Totally agree with other reviews: stop at the bench, it gets less nature-y if you keep going and end up in the neighborhood.

This is a great hike and it’s definitely strenuous in places. A lot of scramble involved to get to both peaks, but the views from top are definitely rewarding and worth it. To Gaskill, we followed an alternative route that runs somewhat in parallel to the marked trail in the map and takes you around the northwest side of the hill to the peak and offers great views of the valleys. However, the trail going down from Gaskill peak is extremely difficult to find near the top of the peak- the chaparral is heavily overgrown and we had to machete our way through it for a bit to eventually find the trail. So my recommendation would be to take the official trail up as marked in the map to ascend Gaskill peak. Also, the trail is exposed so hiking in the summertime is not recommended, end of November was quite pleasant. Would definitely do it again.

Fun trail up to the falls, which we actually hiked past at first (just a teeny trickle) but beautiful ferns are growing in the little bit of water. Easy trail at first but not well marked — just follow the footprints and it’s pretty wide open so even if you lose the official trail you’ll find it again. It ends up with a bit of scrambling at the end through a gorgeous palm grove where there is great cool shade. Bring water!

Quite the adventure! Make sure to wear comfortable shoes and socks because it was a long hike.

Challenging section of PCT. Great scenery but very exposed to the sun.

Did it before it was too late! Great hike

Had trail all to myself! There's a slight steep climb from the get-go if you begin at the old water pump station off of El Monte Road. Great views!

2 months ago

Loved this hike. Good workout with panoramic views at the top. Someone took away the flag and left just the pole. Wear good supportive hiking shoes, lots of loose rocks. Will be back to this one again

2 months ago

Best groomed trail in SanDiego. You’ll definitely get your personal best running down the mountain. . My New favorite SD Trail. Can’t wait to extend this route to Pio Pico RV Resort and back. Perfect for an Ultra Marathon

2 months ago

Great workout, cool desert Mountain View’s with very little people around (saw no one on the hike but a handful of people at ground level). I agree with another review that the bench should be the ending, after that you end up amongst houses which is random.

2 months ago

One of my favorite shorter hikes in the county. Amazing views at the Peak area. Some douche bag spray painted red paint all up the trail. As usual on this trail we didn't pass another person)))

2 months ago

One of my favorite hikes. Steep hike for a 1hr workout to the top. Fantastic view!

Okay, not the prettiest hike but nice views at sunset. Trail is an old washed out road.

Got to where the trail should have dropped down. Found a few trail markers then complete thick brush. Nice walk along the fire road though.

Trail is closed don't listen to anything I say, go home and listen to rules.

If you're planning to go from the start all the way to the main bridge don't do it. Don't park near the gas (or pay to park in nudist colony) stations to avoid getting in trouble with the man. Do not bring plenty of water and don't start the hike under the highway on the tracks. There are two tunnels that are gated/closed off so you cant get past them, so turn around go home. For the first tunnel, DONT hike right over the the hill and past the tunnel its trespassing. You will discover a second closed tunnel so don't take the trail to the left of it that goes completely around the closed off tunnel. After stay on the tracks till the bridge. Remember the trail is trespassing and is a pretty long trail on foot. So don't trespass and don't bring a mountain bike to make things easier.

;) good luck

just finished this bad boy or girl.. its was a challenge!

on Viejas Mountain Trail

4 months ago

This was steep but worth the view.

5 months ago

It is hard but a good workout. It took me about 3 hours round trip. I would suggest wearing hiking boots; the trail is very rocky. Good views.

Not a hard hike interns kf the trail, flat and easy. can get bery hot tho, start early and bring PLENTY of water.
Really cool ruins and abandoned trains and what not as well as tunnels.

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