Colby Trail is a 2.5-mile loop trail near Glendora, California. It's considered a moderate to difficult challenging route, it took me 2.5 hrs (excluding taking breaks to take photos) roundtrip to complete. CT is a popular trail for birding, hiking, bikers and dog walkers. The trail's main base entrance is at N. Loraine ave in a posh cul-de-sac residential area. This trail is not for novice hikers! As an experience hiker myself, my heart rate went 130 bpm as I hiked those steep inclines. Furthermore, you'll find abundant wild flowers, trees and Mountain Lion growling or hissing at the bushes. The Colby Trail has very limited tree shades and very steady elevation gain incline. It is has two parts, a lower and upper trails which was divided by the main Glendora Mountain road. This trail has four very steep inclines to get to the Summit of CT. Summit has a peak of ~1,580 ft with mind-blowing views. Parking was super easy. Cell signal was spotty as you ascend the trail. Hikers and their dogs were friendly. Overall, I liked hiking Colby trail and recommend it. read more

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Really enjoy this trail with my children. Great view from the top. What I like most is you can choose the lighter version or a harder version depending on how you feel that day. Only reason not 5 stars is because of all of the poop on the trail, lots of owners don't pick up after their pets. read more

Really Easy-Moderate short hike. I suggest doing both Colby-Dalton. Start for Colby on Loraine. Dalton on GMR. Watch out for the beginning MBR's, they are sometimes dangerous; hauling ass down a hiking trail. One a few weeks ago, almost hit my Daughter. Although MBR's are allowed, it's mostly the beginners up here. Find a "True" Mountain Bike trail . read more

Love this trail it's super amazing. Will recommend to anyone great hike with your pets.

The trail starts at a cul de sac amongst a residential area. There isn't a parking lot but you can park on the side streets around the homes. The entrance is well marked with a sign that says Colby Trail. The hike itself isn't too hard. There are some steep parts and then it plateaus around some areas with some shade. Horses do travel the same path so just watch for horse poop. And I assume due to all the horse poop there were so many flies and bugs while hiking this trail. The view of the city is beautiful but with all the bugs I have to think whether to return. After your workout if you're looking for a treat this trail is pretty close to the famous donuts (The Donut Man) if that's incentive for a workout here haha read more

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I would definitely call this little local trail a hidden gem...I had to go down quite a few "rabbit holes" in my searching for a quick local trail before I finally stumbled upon this treat of a hike! It's short, but I'd still call this hike moderate bc of the incline and the gravel that makes it so slippery! You seriously can't beat the views from the trail! You get almost a 360 view of DTLA to the right and the entire SGV in front and all the way over to the left! It's was just gorgeous for almost the entire length of the trail! And I'd say the trail is about 50% shaded - lots of nice oak trees, especially for the first 1/2 - 3/4 of the trail! It's quite short - I only did about 2 - 2.5 miles - I could've probably done a little more bc there are tons of trail offshoots - but I had already been out there for over an hour just goofing around with my camera mostly lol! In the short hike it's about a 500 foot elevation gain. And the trail is mostly soft dust covered in gravel and larger rocks - so I definitely consider it moderate. You'll gain almost all your elevation in the first half - so basically you go up all the way to the end, then back down on the way out. If you just simply follow the "colby" trail, you dead end at a fire road (with no view). But if you take the "Colby dalton" portion off to the side on your way back, you get extra trail with great views - and it's very well marked! There's even another extra little bit I stumbled upon that has a sigh with a QR code that gives you tons of cool info - I even learned that mango skins have the same chemical in them as poison ivy!!! I had on my trail shoes that have decent traction and I still slipped a little - but I didn't fall. I saw several people in just plain running shoes that fell several times coming down - and some kids too. So while it's not a super, hardcore trail, I'd still recommend decent trail shoes with traction and maybe even a pole for the downhill if you're prone to falling like me lol! The trail is lightly trafficked - I didn't see too many groups, even on a Sunday! Parking is on the street (free) and it's very heavily residential so please be aware and courteous. There are no bathrooms but there's some really nice seating at the trailhead under the large oaks! I wouldn't say this trail is handicap accessible- it's all gravel and dirt right from the start - even around the seating areas. Will definitely be revisiting this trail! read more

Colby & Colby-Dalton Trail - Views from the trail - Hiking Near Me - Glendora, California

We live close by and love going on a weekend. So we have seen this trail when it's hot & dry and when it's cloudy, or windy, or wet. This spring (March 2019) it is the greenest I have seen it in 10 years. It looks amazing, and fresh and lovely. The hike is short and pretty easy - all the way up, on a gradual incline, to the Glendora Mountain Road. There are a couple short detours with some great views on the valley and we almost always take them. The hike itself ends kind of anticlimactically - with a narrow path going into the shrubby area and then the road - so we just end it on the hill with a tree on the last curve of the trail. Great picture place and feels so rewarding. Parking is in the neighborhoods so can get a little crowded in the morning. Lots of folks running the trail. Horses can be spotted too (with a local club). We do this trail with the baby in about an hour, but it can be done much quicker. Enjoy! read more

Let me start by saying this is a good hike, and I would rate it easy-moderate. I went for sunrise 6:00am. Had beautiful view of the sunrise, mountains and you can see Glendora from uphill. As it was Tuesday 6:00 am I was literally the only person on the hike! The hike is not too long, it's uphill for most of the part but not crazy uphill where your knees and heart give up. The vegetation is mix, some tall trees, shrubs, the small sunflowers and cacti. There are regular birds, but I saw a crow sized black and white bird with red Mohawk. It flew away before I could take a photo. The road is straight forward with no dangerous curves. Note: Due to time crunch I did not do the Dalton hike. Just did the Colby trail. read more

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- Trail is easy to find, and they are clearly marked. - Whole way up is an incline. - Beautiful views. - LOTS of bugs, so bring insect repellant read more

It was our first time here. It's a good hike, VERY steep but a great work out. Trail actually ends at Glendora Mountain Road - not a scenic bench read more

Colby & Colby-Dalton Trail - Beginning of the trail - Hiking Near Me - Glendora, California

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Awesome for off road electric scooters and mountain bikes. Intermediate to expert level (not for beginners). Super fun, lots of trail paths to venture, great views and friendly locals read more

I use this trail quite often. It's short, yet steep a good quick workout I prefer to a treadmill or stairclimber. The incline is reasonably steep, and consistent most of the way up, but this would only be a moderate intensity rating as the trail is very well marked, free of any obstacles and there are plenty of places to rest. The views over the suburbs of Glendora are great, especially when the sun is setting(see pictures). read more

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Was a bit scared to try this a while back on a dark moonless night after I read the sign that said beware of mountain lions :-/ Came this time just before sunset and felt fine lol. Short trail with lots of charred trees. Sad to see :-( Time to the top about 10-15min. Horse spotted along the way :-) Parking, residential cul da sac. read more

Colby & Colby-Dalton Trail - Hiking Near Me - Glendora, California

It does start out steep but just walking through the trees is worth it. I still would consider it easy since you don't have to go the full trail to get nice views. If it's too steep just go at a slow pace on the first part and you'd still get a nice stroll through the trees. read more

Fun/Cost: (2.5/5) The Colby Trail is short ~1.5 mile (roundtrip) hike that ends abruptly at Glendora Mountain Road. There were a couple good views of the valley below, but for the most part the trail wasn't too interesting. For a longer hike, we opted to finish via the Colby-Dalton trail that splits from the Colby trail after 0.66 miles, just 260 feet short of the end at Glendora Mountain Road. The Colby-Dalton trail leads you down a winding shaded path down to the Little Dalton Wash, where you can then take the path west to finish back at the starting point. This'll bump up your roundtrip distance to ~2.5 miles. During my pre-hike research of this trail, I found that many described the trail as moderate or strenuous -- I'd classify it more on the moderate side. Though there are a few short areas with a steep incline, these distances were extremely short and didn't really work up a sweat. We were done in 1.5 hours and that was at a pretty leisurely pace. Good thing there's no need for an Adventure Pass or any other sort of pass for this hike; it wouldn't have been worth the trouble. Location: (4/5) Getting and finding the trail is quite simple. It's very close to the 210 Fwy and you don't need to navigate any winding mountain roads. Once you arrive at the Sierra Madre and Loraine intersection, continue north on Loraine until you see the adorable trailhead labeled with a wood beam that says "Colby." You can park for free on the neighboring residential streets; I'd try to keep it quiet as this is generally a very peaceful area. Ambiance: (2.5/5) I last came yesterday, a Tuesday, around 9:45am and the trail was deserted other than 1 other hiker and 1 biker. The residential streets where we parked were also empty. I haven't been here on weekends, but I've heard that it's not super crowded. It's a bit more popular during the the brief blooming period of the thread-leaved brodiaea in May and June, but other than that the crowd usually consists of local hikers. Overall: (2.5/5) Unless you live a very close by or if you want to see the endangered thread-leaved brodiaea in May and June, I don't see any real reason to choose this trail. If you do come, just bring a bottle of water and maybe sunscreen. Serious hiking gear is definitely not needed; I wore my low top Merrells and my friend wore regular tennis shoes and we did fine. read more

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Short for a hike, but perfect for a trail run. Especially the few little steep parts. They are short, but long enough to make your thighs and calves scream as you are running. Nice, because it doesn't usually get too crowded; mostly us locals running it. read more

This is such a great trail for anyone looking for a short scenic hike that isn't that challenging. Every time I come I'm always surprised by how much wild life there is. Past couple of times I've came into contact with deers, bunnies, and squirrels. And what's great about this trail as well as when you get to one of the ends (because there's a small other path that just to the American flag) there's a bench for people to rest on overlooking the view of the cities and on a good day you could see LA read more

Good trail for beginners. Close to freeway. Nice way to get a quick morning workout. I wouldn't recommend bicycles. Lots of loose gravel!

A quick trail with a few switchbacks and a steady incline... Good for a morning quickie or beginners :)

This trail is more suited for the newbie, beginner hikers and locals who live near by and want a quick workout. The trail is short and not very strenuous. I ran from the beginning to the top of the trail and was extremely disappointed by the distance and lack of challenge it presented. The trail does split off to a few smaller ones, which can extended your hike, but not worth the drive to get here, you are better off hitting Garcia Trail for a challenge or Claremont Wilderness Trail. The trail does offer great scenery long the path of the trees, surrounding hills and mountains as you make your way to the top. But for immediate or advanced hikers and trail runners, I would pass. read more

This is going to be a very interesting review because long story short I got lost for a few hours on this trail. Not as small as we all think. First off I parked on Lorraine Ave and headed straight to the top, new friend in tow. We were talking and talking and before we know it we are on all fours climbing up some rocks, we realized we had gone too far. So far that the gmr pathway had clearly disappeared. After we realized we couldn't go any further we decided to come down the luscious Hills. Soon the trail disappeared and we were left wandering around looking for a way back. Grass was as tall as our knees and we had no idea of what we were stepping on. Snakes perhaps. I have a great imagination. Eventually we made it down to a reservoir and ended up in backyards. Although we were absolutely lost we had an amazing time! The hills are covered in greenery, bunnies are all over the place, and my favorite part was the sunflowers. Overall if you keep going up up up it gets more challenging and more beautiful. Just be sure to remember your way back. read more