Each year, up to a billion monarchs embark on a 2,500 mile journey across North America to their ancestral wintering grounds in the forest sanctuaries in central Mexico. A group of Princetonians was able this winter to accompany Lincoln Brower '53, who has been described as "the continent's foremost authority on monarch migration," to these over-wintering sites.
PJ in Mexico-Imani Joseph
The Sun Man at Cosmovitral in Toluca -Imani Joseph
Cosmovitral Jardín Botánico - Imani Joseph
Cosmovitral in Toluca, MX -Imani Joseph
Church in Toluca - Imani Joseph
Toluca Botanical Garden - Jamie Robertson
Angangueo - Jamie Robertson
Getting ready to go - Imani Joseph
The entrance to El Rosario Butterfly Sanctuary -Imani Joseph
Co-sponsors Sweet Briar well represented - Imani Joseph
One of our first butterflies - Imani Joseph
Monarch - Imani Joseph
The first field of butterflies - Imani Joseph
Butterflies taking a drink -Imani Joseph
Lincoln discussing the butterflies - Imani Joseph
Description of butterfly mating habits -Imani Joseph
Showing the male's hair pencil -Imani Joseph
Karen and her new friend -Imani Joseph
Oyamel Clusters - Imani Joseph
Anne and Harry regard a butterfly- Imani Joseph
Annie makes a friend - Imani Joseph
Annie poses -Imani Joseph
Astrid and Marguerite - Imani Joseph
Jacque, Pinkie, Karen, Faye and Will - Imani Joseph
Annie, Jim and Pam- Imani Joseph
Stella and Jamie - Imani Joseph
Jacque, Will and Faye - Imani Joseph
Along the way to El Rosario -Imani Joseph
Paty! - Imani Joseph
Astrid leads a discussion about a mural Imani Joseph
Marrguerite, Lee, George, Annie and Astrid -Imani Joseph
The bell ringer taking a break in Angangueo - Imani Joseph
Lincoln, Jacque, Paty, Jamie and George - Imani Joseph
Angangueo just after sunset -Imani Joseph
Monarch in El Rosario Butterfly Sanctuary - Jamie Robertson
Monarchs in El Rosario Butterfly Sanctuary - Jamie Robertson
PJ meets a butterfly - Anne Pringle
Monarchs Drinking in El Rosario Butterfly Sanctuary - Jamie Robertson
Harry preparing to ride out -Imani Joseph
Pam looks like a veteran rider-Imani Joseph
Dr. Brower heading to Chincua butterfly sanctuary -Imani Joseph
Reid and Marguerite taking it all in -Imani Joseph
Butterfly clusters at Chincua - Imani Joseph
Dr. Brower and Astrid - Imani Joseph
A Chincua guide patiently waiting-Imani Joseph
Jamie, Lincoln and Karen discuss the mine -Imani Joseph
Karen, Jamie, Anne and Paty discuss Harry's find -Imani Joseph
Listening to a engaging lecture -Imani Joseph
Dr. Brower discusses Viceroy mimickry -Imani Joseph
Anne and Dr. Brower- Imani Joseph
Annie and Dr. Brower - Imani Joseph
Reid, Dr. Brower and Marguerite -Imani Joseph
Group in Chincua - Lincoln Brower
Monarchs in Oyamel Fir Trees in Chincua Butterfly Sanctuary - Jamie Robertson
Astrid and Monarch in Chincua Butterfly Sanctuary - Jamie Robertson
Harry and Karen survey the land -Imani Joseph
Pátzcuaro by sunset - Imani Joseph
Artist Luis Merigo and Patricia in Patzcuaro - Jamie Robertson
Going to see the Paricutín Church- Imani Joseph
San Juan Parangaricutiro Church - Imani Joseph
Church buried by Paricutín Volcano Imani Joseph
Lake Pátzcuaro by night - Imani Joseph
Paricutin Volcano - Jamie Robertson
Making Blue Corn Tortillas at Paricutin - Jamie Robertson
Church Buried by Paricutin Volcano - Jamie Robertson
Sara greets Paty at La Cruz - Imani Joseph
Pinkie at La Cruz Habitat Protection Project- Imani Joseph
Tree Nursery at La Cruz- Imani Joseph
Ed Rashin discusses La Cruz Habitat Protection Project - Imani Joseph
Everyone considers the seedlings - Imani Joseph
Baby white pine- Imani Joseph
Anne quizzes Ed - Imani Joseph
Santa Clara del Cobre - Jamie Robertson
Lunch at La Cruz Habitat Protection Project - Jamie Robertson
Seedlings at La Cruz Habitat Protection Project - Jamie Robertson
Beginning of Morelia tour- Imani Joseph
Observing Visual Endings - Imani Joseph
A Visual Ending - Imani Joseph
Discussing history in The Palacio Clavijero -Imani Joseph
Doing laundry the old fashioned way - Imani Joseph
In the Palacio Clavijero- Imani Joseph
Outside the Biblioteca Pública - Imani Joseph
Stone near Conservatorio de Música de las Rosas -Imani Joseph
At the Colegio de San Nicolás de Hidalgo-Imani Joseph
Observing tricks of light at the Palacia de Justicia - Imani Joseph
Appreciating the architecture -Imani Joseph
Mural of José María Morelos -Imani Joseph
The Cathedral -Imani Joseph
Inside the Cathedral - Imani Joseph
972 The Altar inside the Cathedral - Imani Joseph
Friendly worker at Toluca Church - Pam Heller
Calla Lilies in Angangueo-Pam Heller
Angangeo Schoolgirls - Pam Heller