2019 Nav-X Mountain Bike @ Cool

Quick Info

  • Date: Saturday, May 4th, 2019

  • Location: Olmstead Loop, Auburn SRA, Cool, CA

  • Event Director: tbd (contact)

  • Course Director: Roy Malone (of Bones Adventure Racing)

  • Courses: 1.5 & 3h Mountain Bike

List of Registered Entrants

Follow this link to an updated list of entrants.

Event Summary

On Saturday May 4th 2019, the very first Mountain Bike Map Adventure ever produced by NAV-X brings us to a classic bike destination in the beautiful foothills of the Sierra Nevada - the Auburn SRA, and more specifically the area around Olmstead Loop. We will be using an improved Topo map at scale 1:15,000, meaning 1 cm on the map is 150m in the terrain. This is a brand new map made specifically for bike and running map adventures. This event is co-produced with Bones Adventure Racing, and Roy Malone from Bones AR will be designing the course for you. It's sure to be exciting as well as challenging, whether you are looking for a beautiful bike outing with friends, or an epic battle for the podium! Come find out what this fun new race format is all about!


Time Long Course - 3h Short Course - 1.5h
8:00 Event Check-in (and Day of Event Registration)
8:30 Event Check-in (and Day of Event Registration)
9:15 Event Briefing
9:30 Mass Start
9:45 Event Briefing
10:00 Mass Start
11:30 Finish
12:00 Awards
12:30 Finish
13:00 Awards

New to Mountain Bike Map Racing?

Mountain Bike Map Racing is a “Navigation Sport” that has elements of a few other sports and activities like Mountain Biking, Orienteering and Geo Caching. More specifically, Mountain Bike Map Racing is a time-based challenge, 1.5 hours or more in length, where participants try to score as many points as possible within the time allowed, by visiting checkpoints scattered across a vast, wild trail network. Participants decide which checkpoints to visit, and in what order. Typically, a set time is allowed before the start for participants to study the map, and determine their route. Participants ride their bikes and navigate their chosen route using the map and a compass (No GPS allowed except for recording your track). A late finish comes with point penalties, adding another layer of challenge to the sport. Checkpoints have different point values, so that easy ones yield a lower point value than difficult (far away, or lots of climb) ones. To encourage beginners, course setters typically provide plenty of easy checkpoints near the start and finish location.

Venue / Park Info

Olmstead Loop Trail is a hiking, biking, and horse trail in El Dorado County, California. It is within Auburn State Recreational Area. The Olmstead Loop mirrors the scenic drive you must make to reach it from Auburn. The trail begins amid the mixed evergreen forest and rolling grasslands that characterize the foothills at Auburn’s elevation (about 1,500 feet). It then drops into a canyon cradling a waterway (in this case Knickerbocker Creek, not the American River), then climbs back into oaks and meadows. Toss in some wonderful vistas looking west toward the Sacramento Valley, a couple of relatively steep descents and climbs, and seclusion, and Olmstead supplies just about everything a hiker or biker seeks.

About the Map

This is a new map, suitable for map adventures on foot and mountain bike. It is considered an "improved Topo" map. The improvements are mainly that the vast trail network is accurate, much of which have been verified with GPS. The map will be printed in 1:15,000 scale.

Courses & Divisions

There will be two courses offered:

  • 1.5 hr Mountain Bike Map Race

  • 3 hr Mountain Bike Map Race

Participants can compete in the following divisions for the 1.5hr course:

  • Junior Female (19 & Under)

  • Junior Male (19 & Under)

  • Junior Team (19 & Under, 2-5 person teams)

  • Open Female (20-49)

  • Open Male (20-49)

  • Open Team (20-49, 2-5 person teams)

  • Family - Adults (20+) + children (18 & under)

Participants can compete in the following divisions for the 3hr course:

  • Open Female (20-49)

  • Open Male (20-49)

  • Open Team (20-49, 2-5 person teams)


Early fees (20% off) through April 20th (via online registration).  Regular fee is April 21st - May 1st (via online registration).  Day of Event Registration is cash or check only.

30% discount for Juniors (already calculated in the table below).

Use of e-stick is included in the fee ($0 rental fee in the registration process). Only one e-punch number or rental request is required per team. On the registration page, please enter "0" for e-punch number if you are not the first person registering for your team.

Discounts for orienteering club members (BAOC/GCO/etc...) $5 for adults, with own e-stick (no member discount for juniors). Discount applied during online registration process. If your e-stick does not have enough punches, you will need to pay non-member fee and receive an e-stick for use at the event.

For family teams, it is required to have at least one adult (20 & over) and at least one child (18 & under). Children 12 & under race free. Children must be registered and accompanied by an adult.

Additional fees to rent a map board ($3) and/or compass ($2).

Early Registration Regular Registration Day of Event Registration
Course Length 1.5h 3h 1.5h 3h 1.5h 3h
Junior (19 & Under) $24 $32 $27 $36 $30 $40
Adult (20+) $32 $44 $36 $50 $40 $55

Refund Policy

Refund policy: 100% refund up to 10 days before event. Future race credit 1-9 days before event. No refunds for no-show.

What to Bring

Wear what you would normally wear for a strenuous bike in Northern California.  Here are some tips:

  • Helmet (required)

  • Bike Gloves

  • Sturdy shoes with a good tread

  • Compass (you may rent one for $2)

  • ePunch (SI stick with 50 control capacity - included)

  • Pen and maybe a highlighter marker (for marking up your map and making notes)

  • Water (enough for the time you will be out on the course)

  • On the go snacks (energy bar, gel, etc.)

  • Map Board for bike (you may rent one for $3)

Map and Directions


From Sacramento and Bay Area

Take I-80 East to Auburn. Take exit 119C/Elm to CA-49 S, continue East/South 6.1 miles to the town of Cool. Right turn onto Florian, follow parking attendant instructions.

From Truckee/Reno

Take I-80 West to Auburn. Take exit 119C/Elm to CA-49 S, continue East/South 6.1 miles to the town of Cool. Right turn onto Florian, follow parking attendant instructions.

From South Lake Tahoe

Take US-50 West to Placerville. Take exit 46/Coloma Right to CA-49 N, continue North 19 miles to the town of Cool. Left turn onto Florian, follow parking attendant instructions.