A territorial proposal by Muhammad Abdullah Hassan, leader of the Dervishes, in a 1908 letter to Harry Edward Spiller Cordeaux, Somaliland's colonial administrator. This proposal was important, as a year later, on 12th November 1909, the British acquiesced and withdrew from the aforementioned areas and moved towards the coast.
<a href="//commons.wikimedia.org/w/index.php?title=User:Floathreenn&amp;action=edit&amp;redlink=1" class="new" title="User:Floathreenn (page does not exist)">Floathreenn</a>
Self-made. I found the letter's info regarding the Dervishes' specified proposed frontier territories, namely Buuhoodle, Badwein, Jidbali and the Warsangeli-Isaaq borders on the secondary source: page 196, "Taariikhdii daraawiishta iyo Sayid Maxamad Cabdille Xasan, 1895-1920", an accessible entry can be found <a rel="nofollow" class="external text" href="http://maktabadda.com/taariikhdii-daraawiishta-iyo-sayid-maxamed-cabdulle-xasan/qaybta-saddexaad/">here</a>; for the clan territory, I used <a href="//commons.wikimedia.org/wiki/File:Somalia_tribes1977.jpg" title="File:Somalia tribes1977.jpg">File:Somalia tribes1977.jpg</a>, <a rel="nofollow" class="external text" href="http://hornofafrica.ssrc.org/Hoehne/">this Markus Hoehne source</a> and page 72 of "Peace in Somaliland: An Indigenous Approach to State-building" which describes Yubbe as a Warsangeli town adjacent to the Warsangeli-Isaaq border; I used an abstract outline for all localities after searching through Google Maps. The subsequent approximate longitudinal direction intimates at the locality of Las Galweyta, described as a clan border during the European exploration era in page 463 of First Footsteps in East Africa, Or, An Exploration of Harar, Volume 2.