Did You Know ...

... that the Tucson Orienteering Club was founded by John Maier in early 1984?

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Tucson Orienteering Club will be hosting an orienteering event Sunday, April 11, 2021 at the Greaterville, AZ location.  Greaterville is located on the eastern slopes of the Santa Rita Mountains in the Coronado National Forest.  The event will be a Score-O with either a one or two hour option.  There will be a good mix of beginner, intermediate and advanced controls on the course, so for those of you who have taken advantage of our beginner clinics this would be an excellent event to practice your newly developed skills.

Placer gold was discovered in the Greaterville area in 1874 and the area was mined for several decades.  Eventually the lack of water in the area led to the end of the boom and now the area is mostly used for cattle ranching.

Course: The course is on rolling terrain which is lightly forested.  There is catclaw-type vegetation on some areas of the course, so long pants would be advisable.  The course is very runnable for those of you so inclined and the views are expansive and beautiful.  Please bring any water you might need during the event, as there will be no water on the course.  The event map will be 1:10,000 scale with 5m contour intervals.  The course consists of twenty-three (23) controls with elevations ranging between 5000 and 5400 feet. Register for either the one or the two hour event and collect as many controls as you can during that time frame.  You will automatically roll-over into the 2-hour division if you are late returning from the 1-hour division.  Any minute or fraction thereof returning late from the 2-hour category will incur a 10 point penalty.  A free beginner’s clinic is offered at 9:15 am.  Check in begins at 8:30am, the first start at 9:00am.  Last time to start the course is 11:00am and courses close at 1:00pm. Covid precautions including masking at the start/finish/beginners clinic will be observed.

Registration:  In order to hold events safely and comply with local health regulations we are requiring participants to sign up in advance for a start slot.  If you are an adult member of the Tucson or Phoenix clubs, be sure to select a course on the "Club member" portion of the race selection form to get the reduced, member rate.  You can complete your Pre-Registration here.  See our COVID protocols for more information (exception - there will be a beginners' clinic).

Directions:  From Tucson, drive east on I-10 to SR 83 (Exit 281).  Then drive south on SR 83 for 17 miles to Greaterville Road (between mileposts 42 and 41).  Turn right at Greaterville Road and drive about 3 miles to the event site.  It takes about an hour to get to the event site from downtown Tucson.  From I-19:  Exit 63, drive east on Continental Road and later White House Canyon Road in the direction of Madera Canyon.  At a junction after 8.2 miles, take the left fork (Box Canyon Road, FR 62, improved dirt road). [Note: the right fork leads to Madera Canyon]  After reaching the paved road (Greaterville Road), follow the O-signs to the event site.


  • 8:30   Check In Begins
  • 9:00   First Score-O start
  • 11:00  Last 2 hour start
  • 12:00  Last 1 hour start
  • 1:00   Courses close

Check-In: To insure that all are safe, everyone, whether finished with the course or not, must check in formally at Start/Finish before courses close and before leaving the event site.

Fees:  The event costs are as listed in this chart.  Every person (all courses, all events) is required to carry some type of safety whistle and a compass.  Whistles can be purchased on site.

What to bring: A safety whistle is required, a compass, water (there is no water on the course) and any snacks you wish to consume.

Youth participants: All participants under 18 must provide a waiver signed by a parent or legal guardian.  If you plan to bring a minor without their parent/guardian, then please download a copy of the Waiver and Permission to Participate form from our Documents, Guides, and Forms page (look for it under the "For Orienteers" section) and have it completed and signed by a parent/guardian before you bring it with you to the event.  For more details, see our article about the waiver form for minors.

Friend-For-Free: Members may invite one guest for free to this event.  For details and restrictions, click here.

If you will be bringing a larger group or have questions please e-mail the event directors prior to the race at bpoe2010 at gmail dot com.

Event Directors:  Brad and Yvonne Poe
Course Setters:   Brad and Yvonne Poe



A fun, challenging outdoor navigation activity using map and compass, along trails, cross-country, or a combination of both.  Events are held in the wild, in city parks, anywhere outdoors.  Each event has several levels of difficulty: from a fun family walk, to a challenging cross-country hike, to a competitive running sport.

Featured Clue Symbol


To see all the orienteering control symbols and read more about them, go to the IOF Control Descriptions page.