Exodus from Venezuela

Johan Gonzalez, left, Doris Maralejo and Erik Corniel walk barefoot just south of Cúcuta, Colombia, in order to preserve their sandals for rougher and colder terrain ahead.  (Marcus Yam / Los Angeles Times)

Delimar Fonseca, 18, rests with family and friends on the side of Route 55 near Jimenez, Colombia.  (Marcus Yam / Los Angeles Times)

Venezuelan migrants start their day before sunrise in Pamplona, Colombia.   (Marcus Yam / Los Angeles Times)

Gustavo Rodriguez, center, and friend Jose Toro, left, try to keep warm while waiting to enter a shelter for Venezuelan migrants in Pamplona, Colombia.   (Marcus Yam / Los Angeles Times)

Venezuelans cross the border from San Antonio del Táchira into Colombia through illegal paths near the Simón Bolívar International Bridge.  (Marcus Yam / Los Angeles Times)

Venezuelan migrants disembark from a truck after getting a ride through the Colombian countryside.   (Marcus Yam / Los Angeles Times)

A Venezuelan man stuffs his shoes with makeshift socks made of strips of emergency blankets after leaving a shelter in Pamplona, Colombia.   (Marcus Yam / Los Angeles Times)

A volunteer documents the names of migrants passing through a shelter.  (Marcus Yam / Los Angeles Times)

Nevrimar Barreto, top right, holds son Yhoimer Alvarez, 1, as they take refuge in a room set aside for Venezuelan mothers at Martha Duque’s home turned migrant shelter.  (Marcus Yam / Los Angeles Times)

Joel Samora, 40, left, and Elieser Galarraga, 28, splash in a river near a campground shelter for Venezuelan migrants in Bochalema, Colombia.   (Marcus Yam / Los Angeles Times)

Migrants refill their bottles with discolored water from a tap outside a home.   (Marcus Yam / Los Angeles Times)

Diego Ramirez, 32, pushes daughter Dierliany Naomi Ramirez, 3, on a broken stroller in Pamplona, Colombia.  (Marcus Yam / Los Angeles Times)

Rudimar Alvarez, 19, comforts son Jhorman Perez, 1, as her husband, Johan Perez, 25, looks on after spending a cold night sleeping outside a storefront in La Laguna, Colombia.  (Marcus Yam / Los Angeles Times)

Ramon Cohil, 33, stretches his legs and airs out his feet, which are covered in blisters, near La Laguna, Colombia.  (Marcus Yam / Los Angeles Times)

Venezuelan migrants hitch rides across a freezing plateau.  (Marcus Yam / Los Angeles Times)

Venezuelan migrants walk through rain across a freezing plateau.  (Marcus Yam / Los Angeles Times)

Nahomy Perdomo, 26, left, Liliana Mendoza, 46, center, and fellow Venezuelan migrants struggle to stay awake inside a cargo truck with little fresh air.  (Marcus Yam / Los Angeles Times)

Venezuelan migrants walk through rain and cold.  (Marcus Yam / Los Angeles Times)

After passing through Páramo de Berlín, the most dangerous part of the Andes, migrants make a slow descent toward Bucaramanga, Colombia.  (Marcus Yam / Los Angeles Times)

Pablo Emilio Pabon, 54, prays with migrants who stop for a hot meal and rest near Bucaramanga, Colombia.   (Marcus Yam / Los Angeles Times)

Migrants recharge their phones.  (Marcus Yam / Los Angeles Times)

Juan Gelvis, 38, after disembarking from a truck that transported him and other migrants across a freezing Colombian plateau.  (Marcus Yam / Los Angeles Times)

Venezuelans rest at a park in Bucaramanga, Colombia.   (Marcus Yam / Los Angeles Times)

Jason Figeroa hugs wife Herminda Flores, who is six months pregnant, after finishing a journey on foot to Bucaramanga, Colombia.  (Marcus Yam / Los Angeles Times)