When is Four Corners Quad Keyah?

Four Corners Quad Keyah takes place on Dec 5, 2026. That's in 8 months.

Where is Four Corners Quad Keyah located?

Four Corners Quad Keyah is held in Sonoma, California, United States.

What distances are available at Four Corners Quad Keyah?

Four Corners Quad Keyah offers the following distances: 26.2M, 13.1M, 5K, 2M.

How do I register for Four Corners Quad Keyah?

You can register for Four Corners Quad Keyah through the official registration page.

What is the typical weather for Four Corners Quad Keyah?

Based on historical data, you can expect temperatures between 39°F and 59°F on race day. There's approximately a 15% chance of precipitation.

Four Corners Quad Keyah (2M-26.2M) - Dec 5, 2026 | Sonoma, CA

Discover a truly unparalleled running experience at the Four Corners Quad Keyah, a unique four-day marathon series that challenges runners to complete a marathon or half marathon in each of the four states that meet at the historic Four Corners Monument. While the initial prompt suggested Sonoma, CA, this extraordinary event is actually staged at the **Four Corners Monument near Teec Nos Pos, Arizona, on the Navajo Nation**. Each day, from Thursday to Sunday, runners embark on a new course, starting and finishing in a distinct state—Arizona, Utah, Colorado, and New Mexico. On December 5, 2026, you can join this incredible journey, choosing from a full 26.2-mile marathon, a 13.1-mile half marathon, a 5K, or a 2-mile fun run, though the heart of the event is the multi-day marathon and half marathon series.

The Four Corners Quad Keyah offers diverse and scenic loop courses, with options for both trail and one-mile paved routes daily. Expect a variety of terrain, including challenging singletrack through beautiful canyons in Utah and runnable trails alongside the San Juan River in Colorado. The Arizona and New Mexico legs typically feature 5.25-mile trail/dirt road loops. With a starting elevation around 5000 feet, runners can anticipate breathtaking vistas and a rewarding challenge. Runners consistently praise the event as a tough, wild, and incredibly fulfilling achievement, a true "once-in-a-lifetime" experience that tests both physical and mental fortitude.

Typical race day conditions in early December feature highs around 59°F and lows around 38°F, with a 15% chance of precipitation, creating crisp and invigorating running weather. Throughout the event, comprehensive on-course support includes fluids, Honey Stinger products, fresh fruit, and an array of sweet and salty snacks at well-stocked aid stations. There's also a convenient bag drop at the Monument Aid Station, and runners can access their vehicles throughout the day. Beyond the miles, the race fosters a vibrant atmosphere with live entertainment and post-race food daily, supporting youth adventure and community wellness programs on the Navajo Nation. All finishers receive a unique medal for each state completed, with four-state finishers earning a special Quad Keyah Christmas ornament.