Trail-O calendar 2011:

Information about trail-o on internet:

1.    www.oktrzin-klub.si/preo.htm (in Slovenian)

2.    www2.arnes.si/~gander/OT/precizna.htm (in Slovenian)

3.    www.inet.hr/feud/precizna-orijentacija.htm (in Croatian)

4.    www.vihor.hr/content_files/PreO/index.htm (in Croatian)

5.    www.orienteering.org/i3/index.php?/iof2006/content/view/full/1046 (in English)

6.    www.trailo.org (in English)

Trail-O rules:

1.    www.orienteering.org/i3/index.php?/iof2006/document_library/rules_and_guidelines/trail_orienteering

Control descriptions:

1.    http://213.143.65.25/~ozveza/datoteke/dokumenti/2004_mednarodni_opisi_kontrolnih_tock.pdf

2.    orienteering.metu.edu.tr/test/

3.    www.fortnet.org/icd/

Map symbols - ISOM 2000

1.    mapping standards

2.    lazarus.elte.hu/tajfutas/isom2000/webv/ocont.htm

3.    homepage.ntlworld.com/mapping/isomdata/trailo.htm

Map symbols - ISSOM 2007

1.    lazarus.elte.hu/mc/specs/issom2007.pdf