Event: Lowell Observatory 200k
Date / Time
Start Date: Saturday, August 22, 2026
Registration Closes: Wednesday, September 25, 2024 @23:59:59
Distance: 127 miles
Start Time: 07:00
There will be a mass start at 7:00 AM and announcements and time for questions at 6:55.
Time Limit: 13.5 hours
Sunrise: 6:19 a.m.
Sunset: 6:14 p.m.
Cost: $10
All riders must pre-register. There is no day-of-event registration.
ACP sanctioned.
WAIVER NOTE: You will be automatically directed to the online waiver during registration. The online waiver may also be found at tinyurl.com/AZBrevetWaiver.
REGISTRATION NOTE:
Once you are registered for a ride, you will see your name in the Registered Riders tab. It may take a day or so for it to appear. Registered riders WILL be sent a "Last Minute Notes" email the day after registration closes, normally the Thursday before the ride. This will highlight any route updates, construction, etc. that needs to be communicated. If you do not receive it, please let me know. Also, check your spam folder for the email.
RIDE VERIFICATION:
These events are sanctioned by Randonneurs USA (RUSA) and will be verified using approved RUSA methods. Click HERE to see the details of available options for AZ Radonneurs' events.
Ride Description
This route starts in Flagstaff. It visits both Lowell Observatory Telescopes, the Navy Precision Optical Interferometer (NPOI), Mormon Lake, Happy Jack and Clint's Well. Recall that Pluto was discovered at Lowell back on Feb 18, 1930.
This is a really fun ride, and one that I do fairly often when I want to get out of the desert heat! There is a companion 120k ride which will allow you to bring friends who may not want to do this distance.>
Terrain: The route mostly rolling with one long-ish climb. The climbs up to the telescopes are short but steep. You're welcome!
Start Location
Location: Thorpe Park, Flagstaff
Address: 29 N Toltec St, Flagstaff, AZ 86001
There is on-street parking on Toltec St, also at Thorpe/Birch intersection.
Google map: Click HERE
Directions: At the base of Mars Hill (Lowell Observatory) in Flagstaff.
Here is a more detailed map of where riders can park. The map link will take you to the preferred corner of the park, but getting to that location is easy from any parking location.
Details here:

Route Information
View RWGPS online map here

Elevation profile:
Total elevation gain for the 200k is ~5,000 feet.

Cue sheets may be downloaded.
(Excel format is not available.)
Create custom cuesheet
Rider Info
Lights: We will start in daylight so lights and reflective vest/ankle bands are not required at the start.
But, ALL ARE required if riding after sunset. If you think you might take longer than 10 hours to complete the ride, please take them with you.
Services will be available at regular intervals. 2 water bottles should be sufficient for this ride.
It is not uncommon to have evening rain. It's usually refreshing, but can be cold at these elevations. Riders should be prepared accordingly.
Registered Riders
No registered riders at this time.
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