How exactly do you determine 300' of prominence? I know Roach says 300' above the highest saddle connecting to higher terrain. I am close to finishing all of the named peaks/hills in my home county (El Paso) and would like to include the unnamed points with 300' of prominence. I think Roach and Martin climbed these as well for the counties they completed. Is there a way to easily see this, because I am having a hard time determining if some of these little bumps qualify! For instance, this point above St Peter's Dome is higher than the named point and is seemingly just barely 300' above the surrounding terrain. I think this has 300' of prominence.
http://www.topozone.com/map.asp?z=13&n= ... ayer=DRG25