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HomeBrevetsSummer 300k (ACP)

Brevets - Event View

This is the "Event Detail" view, showing all available information for this event. If the event has passed, click the "Event Report" button to read a report and view photos that were uploaded.

Summer 300k (ACP)

Registration opens Thursday, June 23 at 12:01 AM (Pacific Time).
To register online: sign in to your SIR member account. Don't have one? Create one. It's free!
Once you login the Register button will be visible on the right side of this page (or bottom for mobile browsers).
  • Advance registration is required — we cannot accommodate same-day registration.
  • Membership: All riders must have current RUSA and SIR memberships (you'll enter your RUSA number during registration). Don't have a RUSA membership? Join here (or renew if your RUSA membership has expired). Allow a few days in advance for RUSA verification.
  • Online registration is open until Wednesday, July 20 at 11:59 PM (Pacific Time).
  • Ride cost is $25 paid online at the time of registration.
Registration has closed for this event. We cannot accommodate same-day registration at this time.

The online registration includes signing a responsibility waiver using the same SmartWaiver system used for RUSA Permanents.


Please see the SIR Pandemic Plan for our COVID-19 protocols. These protocols apply to this event and future rides for an indefinite time period.

The Three Volcanoes 300 circles through the wild country between Mt. Adams and Mt. St. Helens. This year the route is updated to visit scenic Takhlakh Lake. The route has a total of 37km/23 mi of gravel. Riders shoud make their own lodging arrangements in Packwood.

For more details see this blog post and Bill Gobie's pre-ride report.

The start will be at the 76 Station at the corner of US-12 & Skate Creek Road. The finish will be at the Hotel Packwood.

All riders must have front and rear lights, a reflective vest, and reflective ankle bands. Be prepared to show these to the ride organizer at the start.


This is not your typical 300K route.

The Three Volcanoes route has historically been a strenuous ride, and this year's version lives up to its reputation. It is 313.6K (~194.9 miles) with 4,261 meters (~13,980 feet) elevation gain. It also features 36.9K (~22.9 miles) of gravel. The gravel varies from "hard packed and smoother than some chip-sealed asphalt" to "deep, soft, squishy, and riddled with washboard and potholes". The gravel descents are particularly gnarly.

Due to quirky ACP brevet rules the time limit is still 20 hours – there is no additional time for the "extra" 13.6K distance beyond 300K, nor is there any extra time for gravel. The minimum clock-time speed for this ride is about 15.7 KPH (~9.75 MPH).

Cell coverage along the route is spotty at best. There is zero coverage at Takhlakh Lake, good coverage at Trout Lake (and free WiFi at the general store), and only Verizon (no AT&T, etc) at Northwoods. It's best to assume zero coverage in all other areas.

All riders should make a go/no-go decision at the Takhlakh Lake control at 106.6K (~66.2 miles). Self-rescue beyond this point gets progressively more difficult. is the suggested route to get back to the start from Takhlakh Lake via NF-23. It's 79.1K (~49.2 miles) with 10.9K (6.8 miles) of gravel. Returning via NF-21 is much shorter but almost all gravel and not recommended.

Please load onto your GPS device and/or phone BEFORE the ride. A printer-friendly cue sheet is also available.

Route and Cuesheet [FINAL]

Note: Printed cuesheets will not be available at the start. You may choose to print your own. To print the cuesheet from the route page, click the More button, then select Print Cuesheet.
Saturday, July 23, 2022, 5:00 AM
76 Station
13053 US-12
Packwood, WA  98361
Additional Info:
Event Contact(s):
Bill Gobie
2022 Brevet Schedule
Registration is required
Payment In Full In Advance Only
For all SIR events you must have front and rear lights, a reflective vest, and reflective ankle bands. Be prepared to show these to the ride organizer at the start. Your lights should be on during any low-light conditions (rain storms, night, tunnels).

You must read and agree to a waiver before beginning the ride, and you must turn in your signed brevet card at the end of the ride. If you will not finish, contact the organizer using the phone number on the card and cue sheet.