Vallecito Lake Heavy Half 

The Vallecito Lake Heavy Half Marathon is a beautiful and scenic course around Vallecito Lake. Nestled in the heart of the San Juan Mountains in Colorado, our race course takes runners completely around the picturesque Vallecito Reservoir with a special section that runs right across Vallecito Dam. If you ever wanted to run all the way around the lake, this race is the only way to do it as a portion traverses private property that is normally not open to the public.  After the race is the best post-race party ever, with live music this year from the One Heart Orchestra.  Grab a few friends and spend the weekend in the beautiful Vallecito Valley.  More than just a great race, this event is a fundraiser for local non-profits.  

2025 Event:  Based on the overwhelmingly positive feedback that was received we will retain the single track segment along the west shore of the lake.   To mix things us the loop will also be run in the opposite direction this year.  Word has gotten out on how great this little race is and we expect it to sell out again in 2025 as there is a 250 runner cap.  When it does sell out you can sign up for the waitlist.  Lastly, all Durango Running Club members get a 10% discount!  Make sure you are logged in to your Runsignup account and that your membership is current before registering and the discount will automatically apply.  

New in 2025:  The Vallecito Heavy Half Marathon will be a cupless event moving forward.  Please bring your own preferred water bottle and for just this year, we will also provide free collapsible cups to those that need them that can easily fit in a zippered shorts pocket.  This event has aid stations along remote Forest Service Roads that are difficult to get supplies to and trash out of. Last year required volunteers drive leaky bags full of discarded Tailwind in their personal vehicles, which is something we don't think we'll get someone to sign up for in 2025.  Please be kind to aid station volunteers as this change was not their decision.

Runner Perks

As great as the race is, this might be one event where the post-race party is even better.  Live music will be provided by the One Heart Orchestra.  All runners will receive a unique finisher’s prize, a custom printed performance long sleeve T-shirt, and the best post-race lunch you will ever have provided by the Rocky Mountain General Store (including a Ska beer or Zuberfizz soda).  A photographer will also be stationed on the course and all photos will be completely free to the race entrants.

Packet Pickup Options:

Thursday May 15 5:00 PM-7:00 PM at the Durango Running Company

473 E College Dr, Durango, CO 81301

Friday May 16 4:00-7:00 PM at the Weminuche Woodfire Grill

18044 CR 501 Bayfield, CO 81122

Race Morning Packet Pickup
Day of race packet pickup and registration will happen at the start line on the morning of the event from 7-8:30 AM. There will be a strict cutoff at this time. Please make sure you give yourselves enough time to register and/or pick up your packet. All local participants are strongly encouraged to pick up before race morning using the options above.

Race Morning

Parking
All vehicles (staff, volunteers, runners, spectators) must park in the Vallecito Church parking lot or the PRID open space next to the race venue.  There should be NO parking in font of Fur Trappers or the Rocky Mountain General Store.  All racers are required to have a valid PRID Use Pass, either a day pass or an annual pass.  A day use pass is $5 per vehicle.  The race registration includes the option of purchasing this fee for participants; however, all spectators will be required to purchase their own pass (unless riding with a participant).  This pass can be purchased directly from PRID the day of the race.  

Vallecito Church Parking:

17576 CR 501 Bayfield, CO 81122

Race Start
The heavy half will start at 9:00 AM. Please make sure you use the bathrooms and provide plenty of time for parking.  The start line is located behind the Rocky Mountain General Store in the PRID open space. 

The Route
Runners will follow the marked course travelling south onto the single track that follows the western shore of the lake.  After the first 2.5 miles, runners will reach the marina and turn left onto County Road 501.  This road is open to traffic and runners must stay on the left shoulder of the road, outside of all traffic cones for the entire race.  After 1.5 miles, runners will turn left onto Forest Service Road 603 and then cross over the Vallecito Dam.  In 4.5 miles, runners will enter private property.   Runners must stay on the designated road right-of-way through this approximately 0.5 mile segment.  After crossing the Pine River and leaving the private property, runners will rejoin County Road 501, which they will follow for the last five miles (2.5 gravel followed by 2.5 paved). The full race loop is approximately 13.9 miles with 1,000 feet of vertical gain (and 1,000 feet of descent since its a loop).  

Aid Stations
You will find four aid stations approximately every 2.5 miles starting at mile 4 (right before the dam).  Aid stations will provide water and Tailwind.  They will also have first-aid bags and cell phones for emergencies.  The last three aid stations will have snacks.  These are the only aid stations that will have food so if you plan accordingly.

Time Limits
We welcome runners of all abilities, and we offer a generous time limit of 4 hours.  This is roughly a 17 minute/mile pace.  If you anticipate being slower than that, please contact the race director ahead of time and you must carry your own water and a cell phone for emergencies as the aid stations may close before you arrive.

Course Safety

The race course uses roads that have minimal vehicle traffic, especially on a Saturday morning in May.  The course will also be marked with cones for safety.  However, runners must remain alert throughout the race, stay on the left shoulder of the road, and obey instructions from course marshals and local law enforcement. Runners should not wear headphones in both ears and no dogs are not allowed in the race. Strollers are not permitted due to the current shape of the forest service road and the single track. 

County Sheriffs will be located at the intersection of CR501 and FR603 at the south end of Vallecito Reservoir.  This is where oncoming traffic will first intersect the course.  Mile markers will be at each mile of the course and signage will be prominent at each turn for runners.  We will also have “Race in Progress” signs in various locations along the course to alert vehicles to the race in progress.

Medical
Each aid station will have first aid bags available for minor treatments.  We will partner with Upper Pine River Fire Protection District for Ambulance and EMS services.

Spectator Locations
There are several great spots along the course to watch the runners go by.  We recommend at the Vallecito Marina where there is ample off street parking (parking anywhere on the course requires a PRID pass).  Spectators may not follow you along the course in their vehicle.  In any instance this is observed, the runner will be disqualified.

Timing
The Vallecito Lake Heavy Half Marathon will be professionally timed by Rocky Mountain Timing. Your RFID chip will be on the back of your race bib. Please make sure you do not bend your chip. Runners should wear their race bib on the front of their body. 

Results
Results will be posted on runsignup.com at the conclusion of the event. 

Travel Information and Lodging
The Vallecito area offers many campgrounds and VRBO options.  The Blue Spruce RV Park and Campground is a sponsor of the race, located nearby and offers cabin rentals as well as campsites.  The Bear Paw Lodge is also a sponsor of the race.  Call 970-884-2508 for their lodging information.

Weather
Average temperature at 9am in mid May is 45 degrees.  Expect temperatures to start out cool and steadily increase as the morning progresses, potentially reaching into the 60’s.  Use the aid stations and stay hydrated.  The event will happen rain or shine.  If precipitation is in the forecast, runners should dress accordingly.  

Fundraising
This is race is a 100% volunteer-led effort.  100% of all revenue generated will go to local nonprofits.

Refunds & Transfers
As with most races, we are unable to offer refunds, transfers, or deferrals in most cases.  If you sign up and are unable to run, please contact the race director to discuss your options.