When Guadalupe Rosales began “Veteranas and Rucas,” her motivation was simple—to remember the parties and scenes of her youth in 1980s and 1990s East Los Angeles. She had been living in New York City for several years and couldn’t seem to find any traces of the backyard parties she had grown up attending. Her friends and family told her to move on. So she did just the opposite, searching and eventually finding magazines, posters, photographs and music from the party scene that she had once been a part of.

Rosales took to the internet to invite others to send their memorabilia and create a living archive of that time. That effort would eventually become “Veteranas and Rucas” and “Map Pointz,” two Instagram accounts dedicated to sharing and celebrating the era of big hair, backyard parties and endless nights.

Latino USA sits down with Rosales and her collaborator, Eddie Ruvalcaba, who photographed many of the parties during his teens. The pair give a glimpse of what those nights looked like and what happened when the party ended.