Delicious Tex Mex and Margaritas - in our completely renovated restaurant located in the heart of Old Town Fort Collins! Now open for dine-in service as well as food and margs takeout. Whether you're coming in to unwind and dine with us, bringing food home for the family or just grabbing some margs for a fun night at home, the Fort Collins Rio is a delicious escape.
Mixed reviews on food quality; some dishes praised while others described as bland or not authentic.
Service
Service is generally highlighted as friendly and efficient, though there are occasional reports of slow or inattentive service.
Atmosphere
Lively and fun atmosphere, but can be noisy and crowded, which may detract from the dining experience.
Margaritas
Margaritas receive mixed feedback; some customers love them while others find them disappointing.
Value
Concerns about portion sizes and value for money, with some customers feeling prices are high for the quality offered.
MG
Murrel Gray
1 day ago
5.0
Had a great time and sone great food!!
FF
Frank
Jan 1, 2026
5.0
Lotta cowboy music…if you’re into that type of thing. Delicious fajitas and chips and salsa, staff is friendly. One of our favorite Mexican places in da Fort
KE
Kenna Elijah
Dec 28, 2025
4.0
Nice place, a little crowded, need more seating. Good drinks, ok food. 😀
CB
Chadwick Alan Biehl
Dec 24, 2025
5.0
Excellent service and even better food. Visit Fort Collins from California every other year or so for past 15 years or so and I never miss dinning here at least once and often 2 or 3 times. Get the Big Tex Margarita. It'll get ya right.
TT
Travis Thornton
Dec 23, 2025
5.0
One of the best, if not the best fajita I have ever had. Margaritas are also some of if not the best I have had.
Favorite place to eat in foco.
Frequently Asked Questions About Rio Grande Mexican Restaurant
Do you offer happy hour specials?
Yes, we do! Check out our happy hour menu online which is available Monday through Friday from 3pm to 6pm!
Can you go to the Rio if you’re doing the keto diet?
The Rio has a variety of keto-friendly options available to our diners! Check out our blog post that outlines some of our favorite dishes that can be modified to be low carb.
Do you have a gluten-free menu?
Of course! Check out our gluten-free website on our website or talk with your server to find a delicious gluten-free TexMex meal!
Do you have a vegan menu?
Yes, of course! We are proud to offer vegan choices. Please know that our kitchen is not a dedicated vegan kitchen. Despite our best efforts, it is possible that cross contamination may occur.
Does Rio Grande Mexican Restaurant accept reservations?
Yes, Rio Grande Mexican Restaurant accepts reservations.
What are the brunch hours at Rio Grande Mexican Restaurant?
Brunch is served on Saturdays and Sundays from 11:00 AM to 4:00 PM. The restaurant is closed for brunch Monday through Friday.
Does Rio Grande offer happy hour specials?
Yes, happy hour is available Monday through Friday from 3:00 PM to 5:00 PM.
What are the regular dining hours at Rio Grande Mexican Restaurant?
Open Monday to Wednesday from 11:00 AM to 9:00 PM, Thursday from 11:00 AM to 11:00 PM, Friday and Saturday from 11:00 AM to 10:00 PM, and Sunday from 11:00 AM to 9:00 PM.
Does Rio Grande Mexican Restaurant offer takeout and pickup options?
Yes, they offer in-store pickup and curbside pickup for takeout orders.
Are there keto, gluten-free, or vegan menu options at Rio Grande?
Yes, there are keto-friendly, gluten-free, and vegan options available. Guests can check the website or speak to their server for details.
What payment methods are accepted at Rio Grande Mexican Restaurant?
They accept American Express, Cash, Discover, Mastercard, and Visa.
Where is Rio Grande Mexican Restaurant located?
It is located at 143 W. Mountain Avenue, Fort Collins, CO 80524, in Old Town Fort Collins.
Can I visit the nearby The Agave Room (The Rio) when I dine at Rio Grande Mexican Restaurant?
Yes, The Agave Room (The Rio), located nearby, is an event and concert venue you might enjoy before or after dining at Rio Grande Mexican Restaurant, enhancing your experience in Old Town Fort Collins.
Are there other dining options close to Rio Grande Mexican Restaurant?
Nearby dining options include Le Creperie, a French restaurant and cafe, and Walrus Ice Cream for desserts, perfect spots to visit after your meal or while exploring Old Town Fort Collins.
Is there a local brewery close to Rio Grande Mexican Restaurant for visitors to explore?
Yes, Gilded Goat Brewing Company, a brewery and bar, is nearby and offers additional beverage options for visitors to enjoy along with their visit to Rio Grande Mexican Restaurant.