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2023 Boulder Dash

Saturday, May 6 - Sunday, May 7

Last update 14 January 2023

Up North Orienteers is pleased to announce the 2023 Boulder Dash.

The Boulder Dash is a 2-day cumulative time classic event sanctioned by Orienteering USA, open to all age groups and classes. It is a National Ranking Event and we will offer a complete slate of courses for everyone from M/F 10+ to M/F 90+.  Non-US citizens and residents are welcome and encouraged to compete.

For those looking for less competitive races, we will offer a parallel recreational event both days with White, Yellow, and Orange courses.  These beginner to intermediate level courses are open to groups as well as individuals.  The recreational courses do not require pre-registration, and instruction will be provided.

Event Dates

The Boulder Dash will take place on May 6 and 7, 2023.  Starts on Saturday will begin at 10:00 am.  Sunday starts will begin at 9:00 am.  All start times will be pre-assigned.


Saturday and Sunday events are in Hollis, NH, at venues about 3 miles apart.

Saturday: Silver Lake State Park & Hollis Town Forest

Sunday: Beaver Brook Association


Any use of these properties is embargoed until after the event.

Map Scale

White, Yellow, Brown-X, Brown-Y:  1:7500

All other courses:  1:10000

Course Details



Online registration will be available soon.

Early registration available through March 19, 2023.

Regular registration begins at 12:00 AM EST, March 20, 2023, with increased fees.

Late registration begins at 12:00 AM EST, April 20, 2023, with even higher fees.

Fees NRE Recreational Event
per day
per day
per day
per day
per day
Early Registration
(before Mar 20)
$35 $15 $10 $5 $15
Standard Registration
(before Apr 19)
$40 $20 $10 $5 $15
Late Registration
(after Apr 20)
$45 $25 $10 $5 $15
After May 2,
contact registrar
$50 $30 $10 $5 $15
Day of event $75 $50 $15 $10 $20
OUSA Member Discount
per day
$5 $3    

Refund Policy

You may receive a refund of your full registration, less a $10 per day penalty, if you cancel before the end of early registration.

You may receive a refund of 50% of your full registration if you cancel before the end of regular registration.

There is no refund if you cancel after regular registration ends.


No childcare will be provided, but we will make every effort to accommodate parents who are competing. Feel free to ask for early, late, or split start times when you register.



Saturday, May 6
Sunday, May 7