Sotol is an agave spirit produced from a specific variety of wild agave, growing in the mountains of the Chihuahua desert in the state of Chihuahua in northern Mexico. Aged in oak barrels and marketed as reposado (using the same definition as tequila), the resulting flavour is generally drier and earthier than tequila.
A white sotol, made in Mexico from Desert Spoon in a similar manner to tequila, produced by Hacienda de Chihuahua in the north of the country. It's a clean tasting and crisp example of this rarely exported spirit.
Hacienda de Chihuahua's Anejo Sotol is a 24 month old sotol, matured in French oak barrels and made in Mexico from the Desert Spoon shrub. It picked up a Tequila.net's Best Sotol award in 2011 and is an excellent example of the 'Other Other' spirit of Mexico.