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

Trinity Alps Map
VIEW FULL MAP
backpacking
9 hours ago

Friend & I went on a backpacking excursion into the Boulder Lakes area of the California Trinity Alps wilderness. This was an easy hike to the first lake & camp clearings. Within a mile or two of this lake, you can find 4 more small lakes & hike a ridge that overlooks it all. From the base of the ridge you kind find trails connecting in all directions. Some great hikes connect through this trail system including the Pacific Crest Trail. Make camp & hike till you drop.

backpacking
4 days ago

This trail is best hiked as an overnight backpacking trip! Doing it as a day hike would make for a very long day with lots of climbing. It's a great backpacking trip if you hike out to one of the lakes in the Four Lakes Loop and set up camp there for two nights. On the 2nd day of you trip, you can do a day hike around the loop and maybe climb up to the top of Siligo Peak. On the 3rd day, you can hike back out to your car at the trail head. Here is a guide I wrote to backpacking the Four Lakes Loops that includes pics, maps, and other info: https://backpackersreview.wordpress.com/trip-reports/four-lakes-loop/

hiking
28 days ago

Did this as an overnight on 7/21-7/22. Barely any mosquitoes, even near the lakes.

We made camp at Upper Siligo Meadows because it was unclear whether there would be camping around the smaller lakes, and we wanted to avoid the crowds at Summit. There is a small creek near the sign marked "Siligo Meadows." After making camp, we slack-packed the loop, spending a couple hours at Summit Lake. Diamond Lake was breathtaking.

As other online resources suggest, do the loop clockwise. Not only does this provide the arguably better set of the views, this gets you going down the flatter portions and up the steeper portions of the trail. For example, some of the switchbacks on the loop are annoyingly flat and long - particularly between Diamond and Luella. The trail going up from Luella to Deer is much steeper.

Even though I had the impression this is a very popular area, we didn't see that many people. We passed a couple groups hiking up to Deer Pass and Summit Lake was crowded, but otherwise the trail was fairly empty. Five-star hike but with three-star hike crowds.

Note that the AllTrails estimate of 14 miles seems off. Other websites put the loop at 5.2 miles and the Long Canyon trail at 6 miles total, which would make it 17-18 miles.

Awesome hike. Beautiful views and big timber!!

hiking
29 days ago

Beautiful hike and lake. I followed the directions which the directions Icon gave me on this website and it took me a longer back way. It was very rocky, rutty road. Luckily I drive a jeep. Follow the sign on HWY 3 that says Boulder Lake trail. Big brown sign. I went back the correct way and it was way smoother and faster.

backpacking
1 month ago

Unbelievable lake with a modest hike

1 month ago

July 2018 - 6.5 mile gravel road in off Eagle Creek Loop, don't need 4WD, just be mindful of the rocks and make sure you have a spare tire. Stay on the main gravel road and you will find your way easily. Trail starts further up the road than All Trails map has the trailhead at. Beautiful scenery and meadows, trail is rocky in some places but overall I'd put it on the moderate side of easy. Several springs along the way. I'm not sure if the loop is still a loop, I went out and back the long way around. Beautiful, deep lake with many well used campsites. Temp good for swimming. I loved this lake's modesty. It has everything you love about the Alps without being too showy. Will be back!

on Four Lakes Loop

1 month ago

Wilderness and campfire permits required throughout the Trinity Alps for overnights. Dayhikes they are not required.

Agree with jason, trail was awesome but the climb in just about did me in. The trail conditions were easy but just constant ip up up. Beautiful loop once you got up there!!

Went backpacking here, & thoroughly enjoyed it! Short hike, uphill for most of the way there, then a descent into the basin. Camped at Boulder Lake. Very serene. Climbed Tapie peak. Lovely views!

backpacking
1 month ago

Just wrapped this up today. Easily my favorite trail I've been on so far. Multiple lakes to see with only a few people scattered about. Lots of trees at the beginning, then red and granite peaks accompanied by some gorgeous meadows. There are plenty of streams and water bodies to refill if you have a filter. If you are going to camp overnight I would suggest Silago Meadows. A bit less crowded than the lakes. We took our time. Swam in a couple of lakes. Chatted up some of the people passing by. I would avoid the weekend for this trail in particular. We headed out Sunday and there were quite a few people coming down the trail.

Whoever said this is a moderate hike is crazy. I've done trails that were labeled as difficult that I had a much easier time with. The beginning of the hike is all elevation gain. It can be done as a day hike but sunset was the best view in my opinion.

Beware the bugs near the lakes in the afternoon. We were covered in gnats near deer lake. There's even a false trail from where people panicked and ran the wrong way. We did the same. Camped at deer lake the second night and had a good time watching the few stragglers run through the gnat guantlet. It's the only time I wish there were more people on the trail.

on Boulder Lakes

hiking
1 month ago

Here are the facts to find the trailhead: Sign is easy to find on Hwy 3 (just south of Coffee Creek) takes you to gravel road (#???) that is easy to follow until you get to a sharp right...sign says 35N53 (topomap said 35N55?). Then follow along and stay to the left when you get to an intersection (other options to the right have crappy signs so you can't read them). Then it's fairly easy to follow...about 10 miles from Hwy 3 to the trailhead.

Good distance for a day hike. The trail gradually inclines most of the way with a few steeper stretches, overall it is pretty easy walking. The Lake is beautiful with multiple areas for people to access the Lake. The creek crossings weren't bad, but there was lower snow pack this year.

backpacking
2 months ago

Had a great trip, this second weekend of June. The trail was in good maintenance, and clear all except two small patches of snow. Weather is pretty variable so make sure to check the forecast first!

hiking
2 months ago

We visited during Memorial weekend and there were some flowers, but it will be amazing in a week or two. We went down to lake Summit to camp - great view, quiet location, although we had to take side trail to reach it. No permit is required for overnight camping, but you need one to have campfire. Scenery is amazing: a lot of snow on North facing slopes, water in all lakes has amazing color. Right now there is some snow when you hike the Loop, and a lot of tiny running creeks are using the trail as a pathway, so we lost the trail at least 3 times. Advice: definitely download the map! Also, it was hot. The first third has some shade, but the rest is brutally sunny. I cannot imagine doing it in July.

backpacking
4 months ago

In cooler weather, I would have rated this four-stars. The July we went though, we had 100 degree weather on that first day that has a lot of elevation gain, and I cannot say that was a good experience when I factor in the resulting blisters despite many efforts to prevent them. However, it was cooler and beautiful up at the four sapphire lakes with expansive vistas and many wildflowers.

on Four Lakes Loop

backpacking
6 months ago

The most stunning views I have ever experienced, and incredibly varied. Every turn held a new view. We went mid August (2017) and there were still abundant wildflowers. We did this is two long days and one night. Took the loop clockwise and stopped to camp at Diamond lake, which is less than half way, but the second day is primarily downhill (although there are some surprise steep inclines past diamond lake, so don't get lured in once you start heading down). The trails were pretty busy, but we were one of only two groups that stayed at Diamond. Note: there are no good trees to hang a bear bag near diamond, so I would suggest a canister. Overall it was definitely difficult, but absolutely awe-inspiring. I would do this trip a thousand times.

one of the best views

hiking
9 months ago

Day hiked this trail 11/4/17. Nice trail with pleasant views of the creek. The trail leads right through Messner’s cabin site. Trail crosses through drainage at times and the water was not bad yet. Don’t remember how many crossings and those were fine too (water isn’t very high at all yet). Ice in some shady areas but still not too cold. Nice views of snow covered peaks on your way back down trail. When circling the lake, the east side had shin deep, boot sucking mud...passable if you cling to the bushes but we were only day hiking so no backpacks— actual mileage may vary.

backpacking
10 months ago

Best hike I've done so far, excellent views!! This is a great backpacking experience. What you want to do this time of year is camp in the woods, set up camp and rest so when you get up early in the morning you can continue to complete the loop. The reason that I say this is because even though camping by the lake might seem like a great idea, it is very cold and windy and there is no wood to make a fire at night!!

on Four Lakes Loop

backpacking
Monday, July 31, 2017

Do an overnight this past weekend. This hike has amazing view, beautiful meadows full of vibrant colors. Its a steady up hill for most of the 6 miles. Its not an easy feat. Went up and over Deer Creek Pass down to Dear Lake, a few tents were up, no really good spots to camp. Even thou I was worn out by this time, we trekked on to Luella Lake, we camped here for the night, with only one other group. We had the lake to ourselves early am and took a dip. Watched the sunrise and headed on up to Diamond Lake, for me this was the highlight of all the lakes. Another steep trudge up the switch backs and up Siligo Peak, very sketchy route the last 300 feet, but bagged the peak. Head back to Deer Creek Lake and begin the 6 mile journey home. This was one intense, hard hike. But worth the blood sweat and tears. There are only a few ideal spots by each lake. The parking lot was full, but didn't run in to much more than a handful of ppl........

backpacking
Saturday, July 29, 2017

First three miles or so are done in a car. A Scion XB had done it when we came back to the car, so as long as you're careful most cars can make it. Signs say 2.5 miles from parking lot, we measured it on the way back and got 4 miles (it feels more like 4 too). Mostly up hill. Lake was gorgeous. The creeks were all very passable and there was no snow what so ever.

backpacking
Saturday, July 22, 2017

Went up with the Dece Scouts for a weekend of backpacking. We camped at Deer lake. There was maybe 4 other groups camped there as well. The weather was amazing and the stars were fierce.

In the morning Jing, Stani, and I did the loop clockwise and arrived back at our camp. The loop took about 3 hours with a big climb at the end. We packed up and headed out.

This place is great.

backpacking
Friday, July 21, 2017

I hiked the loop this summer, across two days, and saw all four lakes on the loop and Summit Lake. Definitely a great hike and there was still plenty of snow. The hike up to Deer Pass was a little challenging, and had to climb through some snow. There were a couple places along the trail where the trial was covered in snow but overall wasn't bad and the views are definitely worth it.

hiking
Sunday, July 16, 2017

I did a day hike to Tangle Blue with a group of 7 extended family members on July 15, 2017. We started hiking at 8am, when it was on 60 degrees. It was over 90 when we returned to the cars at 12 noon, so I really recommend tackling this uphill hike early in the morning in Summer. A lot of the hike is through lush green meadows and the lake is beautiful. The creeks have dropped to summer levels, so all of the crossings were safe. The lake is beautiful and warm enough for a long swim before hiking back. I really recommend a visit to Tangle Blue.

The dirt road to the trailhead has some washouts where culverts failed this past spring but it is not too bad. My Subaru Outback had no trouble at all.

Sunday, July 16, 2017

Sonya ST gave good description. water temperature for swimming in early July.

backpacking
Thursday, July 06, 2017

Went up to the 4 lakes loop for the 4th of July weekend. There is still some snow that you go through or have to go around, but it is melting quickly. This trip is well worth it. It's 7 miles to Deer Lake with a 5,000 foot elevation gain, and another 6 around to Summit Lake. My group passed many others because they were not aware of the large elevation gains. Once you do get up over the pass, find a lake to call base camp and then hike around. We did it the hard way, and took our packs from Deer Lake, past Diamond Lake, and camped out at Summit Lake. Deer Lake and Luella have small trout, so anglers bring a pole. It is very well trafficked during the weekend especially, so you will not be alone up there!

backpacking
Tuesday, June 20, 2017

Just went on 06-10-17. This was my sixth trip, and while I am still new to backpacking, I feel most any adult could do this trek. The first 3 miles are done with your vehicle which I suggest has some clearance to it (Subarus need not apply) as there are washout along this part. My stock 02 tundra does just fine and I've seen a Honda CRV do it too. 4x4 would be preferred, but I do just fine without. The steepest parts are the very beginning and the end where you find the trailhead. Once on the trail you pretty much just follow along the edge of the creek. It is a beautiful hike! All types of terrain with a few ice patches still left near the lake. Took my 8 yr old friend Tucker and had to carry him over the creek twice, but he's got four legs and is short too! The mountain at the top still has a bit of snow/ice on it. Keeps the lake nice and cold. Snow capped mountain, blue skies, cool breeze, green grass, tall pines, and a clear lake. I really can't imagine a more beautiful spot. And for you fly fishing aficionados try the crack back aero PMD.

backpacking
Monday, June 05, 2017

Just got back from Tangle this weekend 6/4/17: 4th year we've gone and the road up to trailhead is by FAR gnarlier than ever - tons of washouts creating deep, boulder-filled dips in the road. BEEFY TIRES AND 4-WHEEL DRIVE are now a must! All trail signage is also gone except the very last one before the parking area.
Actual trail condition: washed-out in many areas, roughed up from still-melting snow, 3 thigh-high creek-crossings (have a good harness if bringing a dog) but generally GORGEOUS as ever! The snow-capped mountainside and thin layer of ice on the lake was an incredible view to sip our coffee/rum next to. Never a disappointment, just a tad more adventurous this time around!

backpacking
Saturday, December 31, 2016

I hiked this during the summer time with some of my trail crew family while working near there this summer. we started from Mumford Meadows on Swift Creek Trail. It is a bit of an uphill but totally worth it. We hit all 4 lakes starting with Deer and ending with Luella, the best way otherwise you're in for some brutal uphill. We camped at Diamond but the camping area at Summit is far better. If you're into peaking, Siligo is super easy to bag. There's somewhat of a trail that leads to it before descending down to Summit lake and it provides a breath taking view.

Load More