There are a few distinctive local hills in San Diego's North County between the Pacific Coast and I-15, and north of the San Dieguito River (Lake Hodges and on west to San Dieguito Lagoon) that are dead useful for orientation purpose whenever you get turned around on a bike ride and can no longer tell where you are and where you are headed. One of these striking looking hills that look different from different angles is San Marcos Mountain, particularly if seen from Vista proper (from WSW looking ENE at the mountain), with the steep zigzag of the very private Catalina Ave etched to its western face.
The tantalizing Catalina Ave is, however, private and tripple-gated so tightly that even an amoeba would find it hard to squeeze through. The only viable route up to the San Marcos Mtn tower is the southern assault up Hardell Ln from Buena Creek Rd.
Hardell Ln branches into three after the last house. Take the middle branch.
Past the gate, be sure to stay either on the road or on the trail to the right of it.
I used to range into the Hollyberry neighborhood via a dirt trail approach from the south, over the Santa Fe Hills (from Borden Rd & Las Posas Rd) for a car-less gravel-bike-friendly ride with good deer and coyote sighting opportunities. A new subdivision is being constructed there, however, and the trail is currently fenced off.... hopefully just temporarily. (I have hope.. since this is in the City of San Marcos, and San Marcos has been pretty consistently awesome about putting in hike/bike-able trails whenever they build a new subdivision. If only I could convince the mayor of San Marcos to come and mayor next door Vista as well).
There are almost always a few locals out walking the lanes in the Hollyberry neighborhood, and they are always a joy to stop and fraternize with. People are so much friendlier on foot and on bike than they are in a car. We are all going to get somewhere, and we are going to actually enjoy the process of getting somewhere... together!
Stay right at the Y-junction and head up the mountain.
Anyhow, going on past the car gate, there is a short firm dirt section before the tarmac returns as the lane meanders up to the saddle of the San Marcos Mountain. The area to the left of the road is strictly private. To the right a single-track trail runs along with the road for a while before veering off to take a more bushy way up to the radio tower complex (hiking boots- and full-suspension mountain bikes- friendly. Gravel bike... not so much).
The big gate at the saddle with a narrow opening on the right side.
At the saddle, the fence gate to the tower complex is usually closed, but there is a narrow opening on the right for hikers to squeeze thru. If the gate is open when you head up, be sure to assume that it had closed when you head back down... and ride at a speed that would allow you to safely stop!
This is an out-and-back ride, so be sure to scout the downhill conditions while you're going up.
After the gate, the road climbs at around 6% toward the tower and then makes a sharp left with a gradient hike to around 8-12% and doesn't let up until after the next right curve. The view is pretty fantastic.
Approaching the KGMG-FM Oceanside radio towers, with 360 view of San Diego's North County. It is amazing how analgesic the wide open vista is.
There is a use trail to the proper summit block where the American flag is, but the actual benchmark is on the top of the rock cropping, and you'd have to do some bouldering to acquire the actual summit. It's worth hiking a bit onto the narrow ridge to have a look around. For all the energy you spent and all the suffering you endured to get up to the hard earned view, you might as well take the time to enjoy the reward. That... is my excuse for loitering, and I'm sticking with it.
Here are some views from the various side streets around the southern shoulder of San Marcos Mountain.
And a few video from the steepie-rich neighborhood.
Camino de las Lomas.
El Paso Alto down to Hardell Ln.
Hardell Ln to the radio tower complex.
This is San Diego's North County, my friends. No climb, no view!
It's been a long while, but yours truly haven't retired from the wearing habit of steep hills hunting. I have moved to the northern bit of the county, though, and it takes a while getting to know all the monsters in one's new environs.
Without further ado, here is a list of 10 famous road cycling climbs in San Diego's North County (that is, north of Hwy 56, and west of Valley Center Rd/Bear Valley Pkwy or Hwy 67) that local riders tend to allude to when comparing how painful their last series of undulated suffering was. To be sure, there are gorier ascents than those on this list. I'm just listing the ones with the best combination of well known/ridden and toughness in different areas of North County. The list of the true hardest climbs will come later.
10. Three Witches (San Dieguito Rd from El Apajo to just before Camino del Sur): To escape from the old money neighborhood of Rancho Santa Fe via San Dieguito Rd to the neuvo riches along Camino del Sur (Santa Luz, 4S Ranch, etc), you must dispatch Three wicked Witches guarding the way: As far as tough climbs go, this triple-steps two-miler is rather tame both in gradient and in length. It is; however, a featured climbs on many trans-coastal rides including the San Diego Century. One must climb little hills before graduating to the truly nasty ones. Three Witches is a great hill to train on for more nastiness to come.
Scripps Poway Pkwy climb toward Hwy 67.
9. Purple Monster (Scripps Poway Parkway from Pomerado to Hwy 67): Yet another featured climb from the famed San Diego Century ride! The 1.8 mile stretch of Scripps Poway Parkway to Hwy 67 on the Purple Course of the SDC is quite jacaranda purple in the cool of springtime, which is also the best time of year to tackle this ascent (or, really, any ascent east of I-15). The Strava segment has the climb starts a bit later than it should, really, as Purple Monster really stops being friendly to eastbound riders as far west as the intersection with Community Rd.
As a side note, although we call Scripps Poway Pkwy a monster, it is actually the nicest way to bike commute between Poway proper and Hwy 67. It is the mellowest climb - gradientwise - and the least traffically stressful compared with the likes of Highland Valley Rd and Poway Rd. There is ample shoulder on both ascent and descent to stay well away from the all too fast cars in the traffic lane.
Scripps Poway Parkway climbing toward Hwy 67.
8. El Fuerte/Alicante (Carlsbad): This is probably my least favorite local hill repeat loop. It hurts multiple times in both directions, and a lot of it is the sort of hill that doesn't look like it should be that painful (or long) a hill, but it keeps kicking where it shouldn't. Then you get to a downhill, and it's all over with so soon... only to be followed by more climbing. Basically a lot of pain and not quite enough immediate rewards (but, keep coming back to it, and you'll likely get quite a lot stronger as a climber in the long run).
The whole El Fuerte/Alicant is 7.6 miles long, with multiple nasty uphill stretches no matter which direction you ride it. The worst bit of the CW direction is probably the mile long climb from Poisettia to Alga. (Alga Rd climb from Alicante to El Fuerte is its own popular reference hill in North County, by the way) From the CCW direction, the stretch from Altiva to Corinthia is just awful. I personally prefer the CCW direction mostly due to traffic on Alicante north of Alga Rd.
The gnarly strait of Gibralta dip...
Note: There is a much steeper way of climbing Alga Hill (the hill that Alga Rd, El Fuerte/Alicante live on), but it isn't very well known, and so doesn't have an entry of its own on this list. It involves approaching from Gibralta Dr north of La Costa Ave, traversing a terrible concrete dip that is not recommended at all during or right after rain, and turning right onto Bolero Dr all the way to the top.
7. Lake Wohlford Rd (Valley Center): A featured climb on the annual Giro di San Diego Gran Fondo, this curvy 2 miler from Valley Center Rd to the lake is best tackled during the week when traffic is less bustling with boat-towing SUVs and trailers. The first mile is the steepest, then it modulates quite a bit on the way to the bridge which marks the top of the climb. Being a mostly east-west climb before veering due north at the lake, timing the climb so that the sun is not in the eyes of the drivers coming up behind you is quite important.
The gnarly 1st uphill mile on HVR.
6. Highland Valley Rd from Sycamore Creek Rd to Ramona (Escondido): Highland Valley Rd is not one I would recommend to anyone new to cycling... mostly due to traffic. To be sure, HVR doesn't carry as much traffic as does the 78 to the north or even Poway Rd to the south, but the first mile of climbing is not only very steep, but also has no shoulder to speak of, and is so curvy and narrow that one can't count on motorized traffic to stay on the right side of the road. It is east of the 15, so tend to be very hot in the summer - fall months... but if you head out there early, you run the risk of having the sun rising right into the eyes of the drivers driving up the curvy road behind you.
For seasoned cyclists, the HVR descent is one of the best in town, but one must always be careful to not count on the road being clear of rock fall debris on the other side of the blind curve (and that the oncoming cars will stay on their side of the yellow line). There are a couple of right turns on the descent that keeps turning longer than they should. It is a fun but quite unforgiving descent.
5. San Elijo Rd/Double Peak Dr (San Marcos): Known simply as 'Double Peak' climb. The 3 miles climb starts off quite gently at the intersection of San Elijo Rd at S Melrose Dr and continue straight thru San Elijo Hills community. It gets steeper (6-8%) after passing Elfin Forest Rd. San Elijo Rd keeps climbing for another 1/3 mile or so past Double Peak Rd traffic light, but we'll turn left on Double Peak Rd for a very punishing last mile up to Double Peak Park parking lot (those inclined could indulge in another short but steep dirt ramp to the proper top of the hill for extra credit). This is the fearsome last (and featured) climb on the local annual sufferfest Belgian Waffle/Wafer Ride.
Double Peak and its sister Mt Whitney require a post of their own, when it comes to horrible chain-stretching climbs. Stay tuned!
Descending Couser Canyon in the late morning shade.
Couser Canyon Rd runs north-south along the east side of Lancaster Mountain, and is exposed to the east, so it's best cycling it in the morning hours for optimum visibility (the afternoon sun can cast very dark shadow on the road and hide you from motorized traffic... and also hide road cracks and debris from you). This is an awesome cycling road connecting Escondido to Rainbow and on to Temecula via Rice Canyon and Rainbow Valley Blvd. It is a relatively mellow, quite scenic, curvy and constant 3.8 mile climb. Fairly low traffic, tho best avoid on weekends and holidays as it is a favorite of local sport motorcyclists.
Coronado Hills Dr from La Moree.
3. Coronado Hills Dr (San Marcos): This is the lone legit route up to the top of little Mt Whitney, the tallest peak on the Cerro de las Posas mountain range that dominates the skyline of San Marcos. It starts out mellow enough heading south from La Moree, but when it starts kicking as you approach the only house on the east side of the road, it kicks with a vicious glee... and doesn't really let up until you earn the saddle at the intersection with Washingtonia. To get to Mt Whitney you would turn right there and climb more rolling bumps of various degrees of savagery until you get to the radio tower. Or, if you are looking for a morning of horrid hill workout, you could continue down the other side of the saddle to the SE end of the road and ride back up... and just keep going back and forth from one end of Coronado Hills to another until your legs fall off. It's a distinct possibility.
The flat bottom just before Cole Grade Rd kicks up the hill for 3 miles of pain.
2. Cole Grade Rd from Hwy 76 to McNally (Pauma Valley): The 2.5 mile bicycling escape route from Rincon to Valley Center is one hot climb. Even when it's cold out, it's always hot climbing up Cole Grade Rd. Newcomers may roll their eyes at the number of times old spinners claim that they hurt so much more climbing up Cole Grade after Palomar Mtn than they did on Palomar itself... but it is oh-so-true!
I think much of it is due to the physical and psychological drain Palomar usually has on you before you get to Cole Grade, and also because of the latter's more severe gradient... and the general lack of wind carving up that side of the hill.
Nevertheless, Cole Grade remains the safest way to ride back up to Escondido from the SW side of Palomar Mtn (I, for one, would happily go downhill on Valley Center Rd from N Lake Wohlford to Harrah's casino, but not the reverse, which I had to do when I rode the first Giro di San Diego Gran Fondo in 2012. Happy to have survived it, and would rather not do it again... ever).
Besides, whenever the Tour of California cycling race comes to town, the pros are usually made to ride up Cole Grade Rd after going over Palomar Mtn, and its steep S curve section is usually where the decisive break of the day gets away from the main peloton.
1. Palomar Mtn by Hwy 76 and South Grade Rd (S6): San Diego's very own Highway to the Stars, South Grade Rd was built in 19 to transport the Hale Telescope to Palomar Observatory.
To the local cyclists, this 12 miler with 21 hairpin turns is our version of the Tour de France's famed L'Alpe d'Huez, with similar distance, gradient, and curvature. It is probably the most consistent long climb in the county. Aside from the lone 1/5 mile long false flat just before the left turn onto South Grade Rd, the climbing gradient is a near constant 7% (the last mile is the hardest one). With no chain-stretching gradient anywhere on the route, cycling up Palomar Mt from the south is more a test of will than anything else... especially during the hot summer months when the long middle stretch of the climb is infested by horse flies and gnats.
Avoid this ride on weekends and holidays when wiggly South Grade Rd is the hot spot for local sport motorcyclists, and the narrow lanes of Hwy 76 is busy with boat-towing trailers and semi trucks. Also, bring plenty of water with you if you attempt this in the hot season. The only watering spot on the climb is the little convenient store on Oak Knolls campground on the first mile of South Grade Rd, then there is nothing until Palomar Mountain General Store and Mother's Kitchen at the top.
As awesome a climb as Palomar South Grade Rd is, it is an even better descent... albeit one best taken with plenty of caution. If you are just doing out-and-back up Palomar, look at the opposite lane on the way up and make a mental note of any potentially hazardous debris field or pot holes/road cracks that might catch you on the way down. Also, beware of the 3 cow grates on the road (you never know if there could be anything stuck in them), and the blind curves. I've been lucky and only seen deer on the road twice in the many years I've ridden there. Some others have seen more. Don't go bombing down that road faster than you could safely control your bike.
The skyline of San Marcos, CA is dominated by the Cerro de las Posas mountain range of which Mt Whitney (1729 ft) is its tallest prominence. Unlike many other prominent hills around town, there are several paved ways to the top of Mt Whitney, though some are less accessible than others. Choosing your way up, however, is an exercise in poison picking. Mt Whitney charges high metabolic price for the view she gives from the top.
Starting from the NE end of the range, the major route up Mt Whitney is on the back side of California State University - San Marcos (CSSM) via La Moree, Coronado Hills Dr, and Washingtonia Dr. The climbing begins a block or so south Coronado Hills Rd at the junction with Via del Campo. From bottom to top is 2 miles long at 8.3% average grade. The first 0.6 mile on Coronado Hills Dr is the most brutal, however, with an opening kick at 17% grade before dropping off to a near constant 15% for half a mile to the Washingtonia Dr turn off. Washingtonia is a bit of a roller until the private drive car gate (hikers and bicycles can go around), after which it only goes up and up all the way to the top. Don't begrudge the car gate at the last level off (Vallecitos Water District overlook) that you have to dismount and hike a bike thru. It's the only 'resting' spot before the sustained 14% grade for 1/4 mile to the tower. Also, remember this gate on your descent... and make sure you can stop the bike without crashing onto it!
Coronado Hills Dr
If you don't mind roughing it for a hard dirt stretch, another legit way up little Mt Whitney is to go up either San Elijo Rd or S Twin Oaks Valley Rd to the Ridgeline Trailhead staging area traffic light at Double Peak Elementary School. Go thru the school parking lot to pick up the dirt bit of Attebury Rd and continue on it to Washingtonia Dr. I prefer coming at it from San Elijo Rd rather than S Twin Oaks because you get more elevation gain from the south side, and you don't have to beg for green light to cross the road to get to Double Peak School. This is the first climb on this video:
(Video is of the Mt Whitney bit on my usual Friday morning assaults on Mt Whitney and her next door neighbor, Double Peak).
Aside from these two fairly open-access routes, there are a couple more private and steep ones whose accessibility can vary a bit from time to time (sometimes bikes and hikers are quite welcome on them, sometimes not so much). The Bela Vita Way route to connect to Attebury Rd to Washingtonia is listed on the City of San Marcos trails project map, though currently it is still strictly private. At 1.8 miles and 9.3% average grade, this is the hardest way to the top on paper (though in practice I don't think it is).
Bela Vita Way is guarded by two gates; the bottom one at S Village Dr was recently extended to cut off the dirt trail access, and the top one in the middle of a 15% grade ramp was fortified a bit, so this way may not stay bike/hike-able for long. With all the gates and the lack of other houses except for the manor overlooking the winery, there is literally no car traffic on this lonely paved lane... except for the winery owner and his couple of neighbors. Here is a video I took a while back (before the gates were extended and fortified), descending from Mt Whitney tower to S Village Dr via Attebury Dr and Bela Vita Way.
The goriest route up to Mt Whitney, however, is from the even less accessible Crestwind Dr on the SE side by Harmony Grove Village. It is about 2.8 miles long at a deceptively mellow 8.3% average gradient. Make no mistake, though, the single digit average grade is due to the little downhill bits in the lower part of the climb. The long uphill bits from Bresa de Lomas on up are all in the teens, with maximum grade in the 20s on the concrete and paved portion of Crestwind Dr (how deep into the 20s depends a bit on how you take the curves, and whether you go up it in a straight line or not).
Bresa de Lomas opening ramp.
The steepie switchback at the bottom of Crestwind Dr.
This route requires strong bike handling skills as well as strong legs and lungs (and at least a 30 cog in your cassette). After the two-houses saddle atop the gory switchback bottom of Crestwind Dr, the road turns into a rutty and pebbly dirt lane with a little dip followed by a sustained 15% grade ramp that gets even steeper once it turns the corner and becomes a concrete wall. Get across that wall to the tarmac, and you still have two long curves of steepness with spots that ventures north of the 20% grade mark to cope with before you get to the houses and false flat where you can breathe a bit before turning steeply up again onto Washingtonia Dr.
Mt Whitney radio tower
No matter which way you choose, though, San Marcos' little Mt Whitney is a gem with its rustic rural and car-less neighborhoods compared to the more well known Double Peak on the other side of S Twin Oaks Valley/San Elijo Rd. Do beware of cracks and potholes, aside from suicidal squirrels and rabbits on your descent... and, please, pack out what you pack in. Be nice to everyone, ride carefully around blind curves, and leave no trace of you behind!
A couple of months ago my buddy Hugo and me participated in the 2nd leg of Neighborhood Cyclery's Pain Is Temporary cycling tour; this was a series of SAG-supported rides that invites cyclists of all abilities to attempt one or more of Southern California's toughest cycling climbs. The 2nd leg of the series was San Diego County's only Hors Categorie climb, Palomar Mtn by Hwy 79 and South Grade Rd. There was quite a big turn out!
We started and finished at El Ray Mexican Restaurant on the north side of Hwy 79 just west of Cole Grade Rd. A few of my other San Diego cycling pals also showed up for the ride. Dean, Neighborhood Cyclery's proprietor, gave a good pre-ride safety briefing before snapping a group photo and sent us on our way. I was quite curious to see how this climb would feel, as I hadn't done it in almost a year (and the weather was forecast to be slightly on the warm side... so there'll likely be bugs!).
Hwy 79 east of Valley Center Rd had was re-surfaced not long ago, though, and we enjoyed the smooth tarmac as much as we could get... which wasn't much considering that the shoulder comes and goes and there isn't much room for bikes in between the rumble strip and the raised curb/brush/multiple fields of broken glass and other things.
This being on a Saturday, there were also quite a few motorcyclists enjoying the road.
Hugo, Teresita, and I made slow but steady progress up the long constant climb. Hugo had gained a lot of weight after 7 years in the wheelchair after falling off the 5th story of a building he was constructing, but had lost over 250 lbs of it since taking up cycling a few years ago. He was still carrying more on him than you'd expect of anyone attempting to pedal up Palomar Mtn the steep way, though.
Dean and his mom were manning the SAG wagons and it was always a treat to spot them as we would come around a blind curve (there are many blind curves on Hwy 79 and S6!).
I'm afraid Hugo popped his hip out of its socket as he got out of the saddle on the lower slope of Palomar South Grade Rd, which made pedaling on quite a pain in the behind for him (no pun intended). You've got to be a tough b*st%rd to keep turning the pedals around on the constant 6-9% grade road for 4 miles with a popped hip, though. I can't even imagine how he did it, but he made it to within a mile of the top before having to call it a day. Would have taken my helmet off for him, but I sort of needed it for a while longer yet.
Teresita and I caught up with a few other riders after we split from Hugo and even got to snap a good shot of Danielle, Dean's wife and co-owner of Neighborhood Cyclery, about 2 turns from the top.
A couple of my Wheel Women of San Diego cycling pals had stormed up the slope ahead of us, so by the time we topped out, they had already came back to Mother's Kitchen from Palomar Observatory. These gals are good!
The Palomar South Grade Rd downhill, of course, is always a treat on its own. I'm afraid there were too many cars on Hwy 79 than I would have liked, but that didn't stop Teresita and I from swinging off the road at Valley Center Rd to patronize a local farmers' fruit stand. The young farmer there sold us huge bags of strawberries, oranges and avocado. He even rigged up the mesh bags with piece of rope to turn them into temporary backpacks for us!
Better yet, everyone sat down for a hearty and very tasty fine Mexican meal at El Ray after the ride. It was a nice morning ride with good friends old and new, and we got to patronize local business in the process, too. A morning doesn't get more perfect than that to me!