My interests are mountain hiking, study of orometry, cycling and Persian literature.
Hiking is what made me meet OSM and like it. My user ID:4845403.
It looks hikers have not been as active as other groups in OSM. We should try to change it. Hikers would be best mappers of nature, if they have a GPS and pay attention to marks on the trek.
What I do
I translated "Hiking" wiki page to Persian (Fa) language (Fa:کوهنوردی). The structure of the page is independent from English page. It include all specific requirements for Persian hikers intended to map regarding the Iranian's mountain hiking culture and terminology.
I'm adding natural features of Iran mountains and hiking trails, gradually. I use gathered info during my mountain hiking programs, "gpx"es in the net and other verified references.