2018 Orienteering USA Nationals

Race Details

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Orienteering USA membership

Director: Mike Minium                                     Registrar: Guy Olsen



            Friday Middle and Sunday Long maps will be 1:10,000 scale.  The Saturday sprint maps will be at 1:5000 scale.  Sunday long course – Brown A ONLY will be printed at 1:7500.



            All standard USA courses and classes will be offered.


Course Length (km) and Climb (m) Table (subject to change – revision Oct-10-2018)


Friday – St Patrick’s – Middle Dist.


2.5 m contours

Saturday – Centennial Park – Sprint 1


2.5 m contours

Saturday – Centennial – Sprint 2


2.5 m contours

Sunday – Bishop Lake – Long


3 m contours

1 White

2.3 km,  25 m

1.4 km,  15 m

1.8 km,  15 m

3.0 km,  80 m

2 Yellow

3.2 km,  35 m

1.9 km,  15 m

2.3 km,  25 m

3.4 km,  85 m

3 Orange

4.0 km,  45 m

2.3 km,  25 m

2.5 km,  40 m

4.4 km,  135 m

4 Brown A

F 65+, F 70+, M 70+, F Brown, M Brown, all 75+ classes

2.6 km,  35 m

1.5 km,  20 m

1.8 km,  30 m

3.9 km,  105 m


1:7500 scale

4 Brown A

Sunday only

5 Brown B

F-18, F 55+, F60+, M 65+

2.7 km,  40 m

1.6 km,  25 m

1.9 km,  35 m

4.9 km,  150 m

6 Green A

F 35+, F 40+, F 45+, F 50+, M 60+, F Green, M Green

3.6 km,  25 m

1.9 km, 20 m

2.1 km,  40 m

6.5 km,  210 m

7 Green B

F-20, M-18, M 50+, M 55+

3.9 km,  40 m

2.1 km,  30 m

2.2 km,  40 m

6.8 km,  240 m

8 Red

4.6 km,  45 m

2.3 km,  40 m

2.6 km,  45 m

8.9 km,  300 m

9 Blue

5.2 km,  60 m

2.7 km,  40 m

2.9 km,  50 m

11.9 km,  400 m


Control Descriptions

            Control descriptions are printed on your map.  Loose description sheets may be picked up when you enter the call-up area 2-3 minutes before your start.   Descriptions for white and yellow courses are in English only.  Descriptions for orange course and above are in IOF symbols only (ISCD2004).


Control Markers

            Control markers will be IOF standard orange and white flag.  Control markers will have a blue stripe, either diagonal or vertical.


Start Procedures

            Clear and check your SI card when you arrive in the start area.

            You will be called up 3 minutes before your scheduled start.

            2 minutes before your start, you will move forward and may pick up loose control descriptions.

            1 minute before your start, you will move forward to the map line.  You may mark your name / number on the back of the map.  Do not look at your map.  You may ask the starter to check that it is the correct course.

            When the beeper sounds, you punch “start” and pick up your map.

            There may be a short streamered run to the start triangle shown on your map (to be determined).  You must run to the triangle.  There is a flag but no punch at this point.  At this point you may begin navigating to your first control.


Drinking Water on Courses

            There will be at least one control with drinking water on all middle and long courses of orange length and above.  Please use the cups provided and dispose of them in the bag or bin provided.


Time Limits

            Time limit will be 2 hours for Middle Distance (Friday), 1 hour for each sprint (Saturday) and 3 hours for Long Distance (Saturday)



Friday, Oct 19 – St Patrick’s Park, South Bend, Indiana

            Middle Distance

            Scale 1:10,000, Contours 2.5 meters

            Maps will be printed on 8.5 x 14 paper, portrait.

            Course Setter: Mike Minium

            Vetters: Thurston and Bonnie Miller

            Consultant: Jonas Kjall

            Park entrance fee:  Fee waived.  Tell the person at the gate that you are orienteering.

            Walk to Start:  Event Center, Check-in, and restrooms are 100-300 m flat road walk south of the parking areas; Starts are 100-400 m flat road walk north of the parking areas.

            Toilets: Indoor toilets will be available near the event center / finish.

            Notes:  All courses will visit 2 states, using St Patrick’s Park in Indiana and adjacent Madeline Bertrand Park in Michigan.  The parks have a wide variety of terrain including forests, prairie areas, open park land, riverside floodplains and more.  There are many trails and cultural features.

            While there are areas of very open woods, you should also expect to encounter poison ivy and multiflora rose.  We’ve avoided the thickest areas of the park.  In general, rough open fields have gotten rougher than originally mapped.  Fall hasn’t really arrived yet and the weeds are still pretty tall in many places.

            Fences mapped as uncrossable are difficult and dangerous to cross.  They are 2 meter tall chain link, with an unfinished top edge which is very sharp and jagged.

            Be courteous to other park users.  Many courses will cross a disc golf course.  The park is popular with hikers.  Organizers of a 24 hour trail running race that begins on Saturday will be setting up streamers and trail markers for their race, and many racers may be arriving to camp overnight in the park.  They will also be setting up their registration / headquarters in a shelter building adjacent to our start.

            The St. Joseph River, along the west edge of the map is deep and swift flowing.  Take heed on trails near the edge.



Saturday, Oct. 20 – Centennial Park, Plymouth, Indiana

            Sprint Distance, 2 stages

            Scale: 1:5000, Contours 2.5 meters.

            Maps will be printed on 8.5 x 11 paper.

            Course Setter: Mike Minium

            Vetter: Thurston and Bonnie Miller

            Consultant: Jonas Kjall

            Park entrance fee: None

            Walk to Start: 500-800 meters flat road walk to each start from the event center.  Event Center / Arena is 200-400 meters from parking.

            Toilets: Indoor toilets event center.  No toilets at starts.

            Notes: This area is a mix of park land with many ball fields and other cultural features, school ground, and forested river bottomland.

            All streams are mapped as uncrossable, with dark blue water and black bank lines.  This is a sprint, so that means DO NOT CROSS.  There are several bridges, and a single ford, mapped with light blue water and blue bank lines.  If conditions are dry, the smaller streams may appear easily wade-able, and the narrowest ones might look tempting to a very fit long jumper.  Remember that the rule is DO NOT CROSS, (except at the mapped ford) if you cross a stream mapped as uncrossable, you WILL be disqualified.  The largest stream is over your head in many places, do not tempt fate even if you don’t care about being disqualified.

            If conditions are dry, the mapped ford is less than ankle deep; but when I was there this past weekend (Oct 9), the ford was swift and muddy, and more than knee deep.  If the water is high, we will set up a safety rope at the ford.

            Wooden bridges had wet leaves and were extremely slippery.

            Stairways (sprint 1) are made from rocks and are uneven and rough.

            The first sprint is more park-like with lots of ball fields and cultural features.  The second is more woodsy with subtle contours and vegetation.  You may encounter stinging nettles and poison ivy on either sprint!


Sunday, Oct. 21 – Bishop Lake, Brighton, Michigan



            Long Distance

            Scale 1:10,000, Contours 3 meters.

            Brown A will be 1:7500

            Maps for Brown A, Green B, Red, and Blue will be 11 x 17 landscape.

            All other courses will be 8.5 x 11 portrait.

            Course Setter: Igor Guskov

            Vetter: Jens Christensen

            Consultant: Jonas Kjall

            Park entrance fee: There is a $9 per vehicle fee, usually from self-serve kiosks.  Enforcement is zealous.  See the main event info page for more details.

            Walk to Start: 1 kilometer.  Allow adequate time.

            Toilets: Indoor toilets at event center

            Notes:  Bishop Lake features detailed Southern Michigan glacial terrain with many hills and depressions.  more to come...


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updated 2018-10-10  1216