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Editor's Picks

Past IOS President Allen Coombes, Curator of Scientific Collections at Puebla University Botanic Garden, discusses leaf variability in Quercus ceirpes (still image from the documentary)
A new documentary by Maricela Rodríguez Acosta
Website Editor | Feb 17, 2026
Quercus miyagii acorn and dried leaves
A rare oak endemic to the Ryukyu Islands of Japan
Elion Jam | Feb 16, 2026
A moss-covered oak (Quercus orocantabrica) in Mata de Albergaria, Peneda-Gerês National Park, Portugal  © Amit Zoran
Steve Potter reviews a new book that features oaks
Steve Potter | Feb 11, 2026

Plant Focus

Quercus canariensis in Cornwall Park, Epsom, Auckland, New Zealand, the champion specimen in New Zealand, planted in the 1920s, 27.2 m tall with a trunk diameter of 209 cm (G. Collett pers. comm. 2026)  © Gerald Collett
Antonio Lambe shares his views on this threatened oak native to Iberia and North Africa

Tour of New Mexico and Arizona

Event Date: 
Sunday, 20 August 2017 to Wednesday, 30 August 2017

 

Michael Meléndrez, long-time member of the IOS, will lead a ten-day field trip in New Mexico from August 20 to 30.

Mountain ranges to be explored include:

1. Jemez Mountains (the Yellowstone of New Mexico, where the Netflix series Longmire is filmed). Driving hrough the canyons of the Jemez will provide some of the most amazing  photo opportunities anywhere.

2. Mangas Mountain where we shall see large single trunk Gambel oaks

3. Gila National Forest to see what the US Forest Service claims as the largest Gambel oak in the United States

4. Whitewater Creek to see massive flood effects from a forest fire and a 500-year flood in 2013 when over 24 inches of rain fell on a fresh forest fire site.

5. Mimbres Hot Springs in the Gila's Black Range where a possible Emory oak National Champion grows and where we can soak in a hot spring.

6. Turkey Creek Canyon in the Diablo Range of the Gila National Forest, the place where Geronimo was born and large silverleaf oaks now grow. Crossing of the Gila River three times will be required in order to gain access to this canyon.

7. Pinaleño Mountains of Arizona, a towering Sky Island mountain climbing from 3,000 feet at its base to 10,700 feet at the summit.

8. Chiricahua Mountains of southeastern Arizona's Coronado National Forest, where the tropics meet the conifer mountains of the Southwest. Famous for bird watching.

9. The Peloncillo Mountains of New Mexico, where the Mexican Sierra Madre Occidental comes into the United States providing a continuous wildlife corridor for jaguar and many other rare animal species, along with a Madrean pine-oak woodland ecotone.

Oak species we hope to see include exemplar trees of the following:

Quercus arizonica
Q. chrysolepis
Q. emory
(possible new National Champion)
Q. grisea
Q. gambelii
(huge single trunk specimens)
Q. hypoleucoides
Q. rugosa
Q. turbinella
Q. toumeyi
Q.
×undulata (evergreen type)

Space is very limited. Participants will use/share private vehicles and stay in affordable motels.  For details, contact Michael at michael@soilsecrets.com

Event Category: