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Registration will open on Mar. 8

Caumsett State Historic Park
(National Ranking Event)

Sunday, April 21, 2024

Caumsett State Historic Park Preserve
Lloyd Harbor, NY

This event is jointly organized by Long Island Orienteering Club (LIOC) and Hudson Valley Orienteering (HVO)


Registration will be open on Friday, February 23rd

Late registration will start Friday April 12th, 11 a.m.

Registration will be closed on Thursday, April 18, 11 am.

All participants must preregister; there will be no on-site registration, except for recreational courses.

Registrar - Geof Connor (


All standard OUSA competitive courses and classes will be offered.  

Model course will be available on April 20 (details below).

Embargoed area - The entire Caumsett State Historic Park Preserve is embargoed as of February 15, 2024.


Scale - 1:10,000 (Blue, Red, Green, Orange) and 1:7500 (Brown, Yellow, White).
Contours - 2.5m.


Caumsett State Historic Park Preserve situated on a scenic peninsula extending into Long Island Sound. The area is a terminal moraine remained from the last glaciation - with typical moraine hills and depressions combined with erosion gullies. Surface consists of glacial till containing sand and gravel, with numerous medium to small sized boulders. The maximum elevation gain on a slope may reach up to 35 meters, though on average is less than 10 meters.

Vegetation of three types - beech forest of various runnabilities, thick overgrown old farmland, open and rough open fields.


Model course will be available on Saturday, April 20, at Muttontown Preserve.

Parking for Model course -
The map for the Model course will be available for download by April 15, 2024.
Model map print size - US Letter. Scale - 1:7500, contours - 2.5 m



Parking -

Registration -


Fishing, hiking, bird watching, nature photography and nature study are among the many activities visitors may pursue.
Enjoy the breathtaking view off the shoreline cliffs, dunes and white sand beaches on the northern edge of the park.

The polo pony barn provides lessons, boarding & equestrian services as part of the Lloyd Harbor Equestrian Center. The Masters Garage houses the Nassau BOCES Outdoor and Environmental Education Program. The historic Henry Lloyd Manor house built in 1711 is leased to the Lloyd Harbor Historical Society which provides historic interpretation of life during the colonial period. 

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