Swept Away A detailed account of how 28 people died in the flooding at Camp Mystic. Source: Flooding data from First Street. 3-D model of camp based on LiDAR data captured by The Times on Nov. 12. The New York Times

Across Camp Mystic on the night of July 3, 195 campers settled into their bunks. Taps played over a loudspeaker shortly after 10 p.m. Dick Eastland, the 70-year-old patriarch of the family-run all girls camp, was at home in his creek-side house on the camp property, not far from the cabins.

So too was Edward Eastland, one of his sons. Edward grew up at Camp Mystic and now directs the camp along with his wife Mary Liz, living in a house even closer to the cabins and the Guadalupe River than his father.

Heavy rain was in the forecast, and camp staffers had already pulled from the water the largest boats — 20-foot-long “war canoes” — as they always did before a big rain in the flood-prone area.

What follows is the most detailed description to date of the events that took the lives of more than two dozen campers and counselors, and the elder Mr. Eastland, at the 99-year-old summer retreat.

The descriptions and rendering of those events were taken from the first interviews that Camp Mystic’s owners have granted, along with never-before-seen videos and photos taken during flooding at the camp, data from devices such as Apple watches, cell phones and vehicle crash data, and court documents from a lawsuit filed by some of the parents of children who died.

The Times visualized the water levels at the camp over the course of the night using videos and photos from the camp and estimates from a flood simulation by First Street, a nonprofit that assesses flood risk in the United States. The moving dots on the diagrams in this story show the simulated flow and depth of water at different times, and the extent of flooding.

1:14 a.m.

Office Cabins Recreation hall Dining hall Cabins Cypress Creek Guadalupe River Recreation hall Office Cypress Creek Cabins Dining hall Cabins Guadalupe River The New York Times

At 1:14 a.m. on July 4, the National Weather Service warned of potentially life-threatening flooding in the area. By that point, according to data from his phone, Dick Eastland was already up and monitoring the weather.

Around 1:45 a.m., he radioed his son, Edward. “His words were that we’ve gotten about two inches of rain in the last hour and that we need to move the waterfront equipment,” Edward Eastland told The New