Rio Frio on Ice

A running, trail race on the frozen Rio Grande River during the Alamosa Ice Festival in the San Luis Valley of southern Colorado.

You have an entirely different perspective when running down the middle of a winding, scenic river. The Rio Frio 5K on Ice course is entirely on the frozen Rio Grande River at Alamosa, Colorado. It's a unique spot where there are no rapids, in the lowest spot of the largest alpine valley in the world. The deep cold settles in each winter. Very thick ice is created, the kind of ice that is normally only found on lakes.

So much fun seeing all of the awesome & creative Pirate Costumes! Thank you to everyone who dressed up and came for the Grub n' Pub Group Photo! Congratulations to our Costume Contest Winners Ava Hoffman, Deb Benalli and Barbra Davis

Nice pics by Kat Hazleton Olance

What a backdrop to the Rio Frio on Ice - Fat Bike race in Alamosa!

Fat Bike Races @ 10am, Ice Carousel and Polar Pluge @ 11am! It's a gorgeous Alamosa morning!

City of Alamosa Activities

Y'ARRR! The Rio Frio 5k on Ice is tomorrow, but it's not too late to register! Register now to avoid "same day" registration fee. Online registration is available until 6:00PM or head over to the Nestlé Toll House Café by Chip - Alamosa tonight between 6-8pm. Saturday registration is only available in person at the Alamosa Senior Center from 8:00AM to 9:30AM.


Ahoy! O'er half of the Grub n' Pub tickets have sold, but don't despair, you can still get them 🏴‍☠️Today at the Depot until 5pm 🏴‍☠️This evening at Nestle Toll House from 6pm-8pm 🏴‍☠️Saturday at the Infomation Tent on San Juan until they are sold out!

Gear Tip: Convert Your Sneakers for Winter Running

Runner's World shares DIY tips for converting your typical road shoes for winter runs. Stay on your feet while braving the elements and enjoying your runs wi...

City of Alamosa Activities

Have you ever ridden a fat bike? Have you ever ridden in a fat bike race? Probably not! But, now is your chance. A 1.5-mile course has been groomed around the perimeter of Blanca Vista pond for our Rio Frio Fat Bike Races on Sunday, January 27th. Register here:

Kristi Mountain Sports, LLC
RIO Recreation Inspires Opportunity
Generation Wild Colorado

The Best Time

A quick tutorial on how to fasten your timing chip to your shoe!

Yo-Ho-Ho, calling all pirates! We're awarding prizes for the best-dressed scallywags, scamps, and scoundrels at the Rio Frio Ice Fest Grub n' Pub! There are three categories: Most Authentic, Most Original, & Wildest pirate costumes🏴‍☠️

The Rio is Frio and runable!

Register for the 2019 Rio Frio 5k on Ice today for $25! Price goes up January 14th.

'Slush Circles' are a sign the Rio Grande is getting ready to freeze over!

Visit USA Parks

Each year you come to Alamosa for the Rio Frio Ice Festival, be sure to schedule a side trip in a different part of the San Luis Valley. See if you can spot the subtle Rio Frio plug.

Routed in the San Luis Valley, in Southern Colorado, Alamosa has a great variety of outdoor activities to offer, along with beautiful landscapes, the famous Great Sand Dunes National Park and Preserve and Zapata Falls.

See this video to get a real first impression. Or have you ever enjoyed a sleigh ride on the sand? ;-)

#ThisIsMyRoute #VisitUSAParks


Could skate the Rio Frio 5K on Ice on the snow that covers the ice!

These shoes combine skis and inline skates. ⛷ For more shoes you can work up a sweat in, check out these workout shoes:

Making of an Ice Carousel - many of you asked how we did it...

2018 Results

Rio Frio 5K 2018 RESULTS are up!!!!

Rio Frio on Ice's cover photo

Alamosa Valley Courier

Rio frio

Please give a thumbs up thank you to our local volunteer firefighters for keeping us safe on the ice and water during the Rio Frio Ice Fest!

Photos by Dave Jones

Photos by Dave Jones


Visit San Luis Valley, Colorado

2018 Rio Frio on Ice Fest - Polar Plunge. Mayor Ty Coleman takes the plunge then Batman to the rescue! Make sure to tag the other Plungers!!

#polarplunge #winter #takingtheplunge Alamosa, Colorado Alamosa Valley Courier #getoutthere #explore

Rio Frio Ice Fest 2018

Rio Frio Ice Fest 2018 Ice Carousel and Polar Plunge! #RioFrio2018 #SuperheroStyle #RioFrioIceFest2018 #RisingFenixProductions

Rio Frio 5k 2018!

Check out the Rio Frio 5k Walk / Run tomorrow!

Race starts at 10:30 am at Cole Park.
New registrants and packet pickup starts at 9 am until 10:15 am at the Senior Center!

Biggest and best Bonfire in Ice yet!

Everyone was delighted to watch the Polar Plunge today!

Rio Frio 2018 Ice Carousel and Polar Plunge

In case you missed it! Check out the #RioFrio2018 Ice Carousel and Polar Plunge!

Rio Frio 2018 Festivities Saturday 27th at the Blanca Vista Park Ponds. In the San Luis Valley, Alamosa, Colorado

Alamosa Valley Courier

Who else took the plunge? Post your photos and videos here!

Rio Frio polar plunge

Ice Carousel preparation begins!

Downtown businesses are offering specials and free stuff today - shop as you are checking out the ice sculptures!

It’s Ice Fest weekend! Stop on in and stay warm with one of our superhero drinks! Remember, even superheroes drink coffee! We’ll be open until 8 p.m. on Saturday, so we’ll see you soon! #milagroscoffeehouse #drinkcoffeeloveothers

Wow! Running the race on the lake at Blanca Vista Park will be a special experience! Registration and Packet Pick-Up Saturday at Main St & San Juan Ave 11-3, or race day Sun 9-10:15 @ Cole Park in the Senior Center. Can reg online til 11:59pm Sat,

Out at Blanca Vista today and noted that the recent(ish) snow really has improved traction on the ice, yay! Can't wait to get the Ice Carousel spinning tomorrow.. Hope to see you there..

The Superhero Ice Throne is taking shape.. Be sure to check it out this weekend. Snap a photo and share them here!

Don't miss out; here's the entire weekend's line up. Visit for more info or call the Rec Center at 589-2105.

A random moment today on the Rio Frio race course... So beautiful, perfectly clear ice.

Math, Physics & Fun!

Food for thought! With a theme of Superheroes for the 2018 Rio Frio Ice Fest, how about a famous real person that does not make most people’s Superhero lists because they are mostly unfamiliar with Archimedes! He is the guy who gave us Pi.

They're ready to race... are you?
Registration is available:
1- Online at
2- Info Tent on San Juan Ave, Sat. Jan 27 11am-3pm
3- Senior Center, Sun. Jan 28 8:30-10:15am
Race packet pickup is available at #2 & #3!!

An Excellent Family Experience in the Stunning San Luis Valley -

Thanks! Residing in the scenic expanse of the San Luis Valley, Alamosa is the ideal launching point for an unforgettable Colorado adventure. Those seeking picture-perfect vistas will be enamored with The Great Sand Dunes National Park & Preserve which features the tallest dunes in North America with the San...

2017 Rio Frio 5k Run

Check out these highlights from the Rio Frio 5k in 2017! Be sure to join us again this weekend!

2017 Rio Frio 5k Run on the frozen Rio Grande River.

Preview of the Rio Frio 5K's SUPER sweet awards.. Race registration is still available through the link on the webpage!!

Local businesses are ready for this weekend's event. Check out all these sweet promotions, sales, and deals.

Plus, kids are invited to color, draw, or create their favorite Superheroes at our Kids' Art event- San, Jan 27 from 11am to 1:30pm, just before the start of the Costume Contest! Art materials are provided and the event is FREE.

[01/23/18]   We want to spin you right round, so....
Does anyone have a boat motor we could borrow this weekend? Send us a private message if you can help out. Thanks..

Cool spot on the Rio Frio 5K route that zig zags thru cattails! Sign up now at

Some fun, free activities for the kids and the kid in us all...

Grub N' Pub

Don't miss out; get your tickets at the Depot now!!

Want your business to be the top-listed Gym/sports Facility in Alamosa?

Click here to claim your Sponsored Listing.

Videos (show all)

Rio Frio Ice Fest 2018
Rio Frio 5k 2018!
Rio Frio Ice Fest




Rio Grande River
Alamosa, CO
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