Some important essential oil guidelines to remember: Essential oils should be diluted in a carrier oil to a maximum of 5% (see these 5 Face Oils For Naturally Clear, Flawless Skin and The Best Face Oils By Skin Type). So since 1 ml is 20 drops, for every 1 ml of carrier oil, you would add 1 drop of EO.
The San Francisco Peaks are composed of six peaks, including the four highest in Arizona: Humphreys Peak, 12,637 feet (3,851 m), Agassiz Peak, 12,356 feet (3,766 m), Fremont Peak, 11,969 feet (3,648 m), Aubineau Peak, 11,838 feet (3,608 m), Rees Peak, 11,474 feet (3,497 m), and Doyle Peak, 11,460 feet (3,493 m).
We also have a more detailed Map of Arizona Cities. This Arizona shaded relief map shows the major physical features of the state. For other nice views of the state see Arizona Satellite image, Arizona wall map or the Arizona map by google.t shows elevation trends across the state. Detailed topographic maps and aerial photos of Arizona are available in the Geology.com store. See our state high points map to learn about Humphreys Peak at 12,633 feet-the highest point in Arizona. The lowest point is the Colorado River at 70 feet.