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ultrasignup.com

Cosmic Solstice

calendar_today 15 Aug, 2026

directions_bike Cycling

sell $85.00

Cosmic Solstice

About the Event

Cosmic Solstice returns to Flagstaff, Arizona on August 15th as a fundraising event for the construction of new mountain bike trails on Mount Elden. This annual ride is organized by the Flagstaff Biking Organization and aims to raise funds through participation fees and donations. Participants can register at https://ultrasignup.com/register.aspx?did=135515, with all proceeds going towards building two directional mountain bike trails that will enhance recreational opportunities in the area.
47-mile Bike
Start: 09:00:00  •  Fee: $85.00
The race begins early on a cool morning along Fort Valley Road just outside Flagstaff. The trail conditions are firm and slightly soft, providing an ideal surface for cyclists to navigate through diverse terrain around Mount Elden. Cyclists can expect minimal precipitation risk but should prepare for moderate humidity levels with temperatures ranging from 68°F (20°C) at dawn to upwards of 79°F (26°C) during the afternoon.
Since its inception, Cosmic Solstice has become a significant event in Flagstaff's cycling calendar, attracting over two hundred participants each year. Funds raised through this ride are crucial for advancing projects such as new trails on Mount Elden and improving existing infrastructure within the city’s biking community. Over twenty years of dedicated effort from local organizations like Momentum Trail Concepts ensures that these fundraising events translate directly into tangible improvements in trail quality and accessibility.
The course itself winds around Fort Valley, offering a challenging yet scenic 47-mile route for cyclists to enjoy. The terrain varies widely with stretches along well-maintained dirt paths through the forested areas of Mount Elden, providing both elevation gains and rewarding descents throughout the day. Cyclists will encounter several aid stations positioned at key intervals along the course where they can refuel and rest before continuing on their journey.
On race morning, participants should anticipate temperatures around 68°F (20°C) with a UV index of seven, indicating high sun exposure but also clear skies for optimal visibility during early daylight hours. Cyclists will start near Fort Valley Trailhead in Flagstaff at sunrise to take advantage of cooler conditions before the day heats up.
Registration fees are $85 per participant and can be paid through https://ultrasignup.com/register.aspx?did=135515 with deadlines approaching rapidly as the event date draws closer. Bib pickup will occur on August 14th from 9 am to 7 pm at Flagstaff Community Center, where participants must show proof of registration and a valid photo ID.
For new riders planning their first Cosmic Solstice experience in Flagstaff, it’s essential to arrive early with all necessary gear including proper cycling attire suitable for the changing weather conditions throughout the day. A bike equipped with reliable tires and gears is recommended as well as hydration packs or bottles since water stations are spaced out along the route.
Cosmic Solstice returns to Flagstaff on August 15th, continuing a tradition of community engagement and environmental stewardship in support of building new mountain biking trails around Mount Elden. This event is worth attending for anyone interested in contributing to local trail development while enjoying a challenging bike ride through picturesque Arizona landscapes.

Races Offered

47-mile Bike

Aug 15, 2026

straighten

Distance — 75.6K

terrain

Type — Cycling

timer

09:00

sell

$85.00

Weather History

These values represent the 3-year monthly averages for August in Flagstaff.

thermostat Temperature
14.5° / 27.5°
wb_sunny Feels like
12.2° / 24.3°
light_mode Avg sunshine hours
12h 11m
water_drop Avg rainfall
1.4 mm
ac_unit Avg snowfall
air Avg wind speed
10.4 km/h (Light breeze)
opacity Sweat loss rate
Moderate
terrain Course conditions
Hard and dry surface
sunny Max UV Index
High (7.0)
humidity_mid Humidity
46.5%
wb_twilight Sunrise
05:46
nightlight Sunset
19:12

About Flagstaff

Learn more about the host city, Flagstaff.

Scenic view of

Flagstaff is a city of over 75,000 people (2019) near the San Francisco Peaks mountain range of northern Arizona and the Grand Canyon. At an altitude of 6,990 ft (2,130 m), Flagstaff and much of the surrounding region are substantially cooler than the low desert that dominates the southern part of the state. Though still dry by east coast standards, enough rain and snow falls in the area to allow a forest of ponderosa pine trees to cover the landscape. Winters tend to be cold, and heavy snowfall is expected on an annual basis.

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