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Big Tahoma, Three15er, and Rock Creek Ramble are produced by MerGeo.



Rock Creek Ramble Navigation Weekend and 10-Hour Race

April 7-8, 2012, Sprague, WA

  • Saturday, April 7
    • Navigation training, including about three field practice exercises and a 1-2 hour point-to-point race for putting your skills to the test
    • Saturday start for the 10-hour navigation race, with 4-hour and 7-hour event options for those teams unable to  participate on Sunday.  See the Schedule for details.
  • Sunday, April 8, there will be a 10-hour navigation race, with 4-hour and 7-hour event options

Provisional results have been posted. We'd like to get your team info and result correct, so let us know if you see a problem.


April 9, 2011 Results

The Rock Creek Ramble is a team adventure you won't want to miss! Plan and follow a route on foot to as many of the 50 checkpoints marked on the map as you can in your chosen time limit. Go for 4 hours, 7 hours, or the full 10 hours. A team on the course!

Participate solo in the 4-hour or 7-hour events or go in a team of 2-5 in the 10-hour. We are offering 4-hour participants a choice of start times: 7:30 a.m. or 12:30 p.m.

There will be a mix of checkpoint difficulties, with most checkpoints requiring some off-trail, cross-country navigation. The open nature of the terrain makes the area more forgiving to less experienced cross-country navigators than a forested area, Rock Creek flowing through the grassy valley with basalt cliffs in the background however novices would find this event quite challenging, so some prior navigation experience is recommended.

MerGeo is also producing the Three15er 24-Hour, September 29-30, Naches, WA in rolling to hilly, eastside forest and open land. This event will feature both the classic 24-Hour format and shorter time options, and North American Championships status is being sought for this race.

Learn more about rogaining, the sport of cross-country navigation.

Previous Wilderness Navigation Races by MerGeo

Big Tahoma – October 8-9, 2011 — Ashford, WA
Here are Results.

Rock Creek Ramble – April 9, 2011 — Sprague, WA
Here are Results.

Three15er – October 9-10, 2010 — Cle Elum, WA
Here are Results.

Big Tahoma – October 3-4, 2009 — Ashford, WA
Here are Results.





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