Stjenjak: razlika između inačica

* [http://wrgis.wr.usgs.gov/docs/parks/province/rockymtn.html U.S. Geological Survey stranica Stjenovitih planina] {{eneng iconoznaka}}

* [http://www.blueplanetbiomes.org/rocky_mountain.htm Blue Planet –Stjenjak] {{eneng iconoznaka}}

* [http://www.headwatersnews.org Headwaters novosti] {{eneng iconoznaka}}