You are correct, Wiley Brooke trestle. Up in the mountains in Crawford notch, unsure if there is an actual trail up to it tho.

Story of Wiley house is an interesting New England story if interested.

Over the next two months, the region experienced a severe drought that dried the soil to a much greater depth than usual. However, this drought came to a sudden end on the night of August 28, when a severe storm passed through here. The torrential rainfall destroyed nearly all of the bridges in the notch, and it also soaked deep into the dry earth, making the ground particularly susceptible to landslides along the steep cliffs. One such slide occurred here at the Notch House, but, as in the June slide, the building was narrowly spared. It stood right in the path of the landslide, but the falling debris struck a low ridge just above the house, causing it to split into two streams. As a result, the landslide passed on both sides of the house, destroying the stables but otherwise leaving the building miraculously intact before reuniting into a single stream just below the house.

Over the next few days, though, the nearby residents of the notch could find no sign of the seven members of the Willey family, or the two hired men who lived here. Inside the house, there was evidence that the occupants had left in a hurry, suggesting that they had tried to flee to safety in advance of the landslide. Subsequent searches of the area uncovered the badly-mangled bodies of Polly Willey and one of the hired men, David Allen, in the debris below the house. Samuel’s remains were soon discovered as well, along with those of their youngest child, three-year-old Sally. The body of David Nicholson, the other hired man, was found five days after the disaster, and a day later the body of twelve-year-old Eliza Willey was found far from the house, on the other side of the Saco River. However, the other three children—eleven-year-old Jeremiah, nine-year-old Martha, and seven-year-old Elbridge—were never found.

In the aftermath of the disaster, there were many theories as to exactly what happened here on the night of August 28. The most likely explanation, which Benjamin Willey provided in his book, is that Samuel stayed up during the night to monitor the storm and watch for signs of a landslide. As he heard the slide approaching, he awakened his family, and as they were leaving they heard the sound of the stables being destroyed. This caused them to flee in the opposite direction, and in the darkness and pouring rain they unknowingly ran directly into the path of the other side of the landslide.

https://lostnewengland.com/2020/03/willey-house-harts-location-new-hampshire/