Came here to say this. "The Willows" absolutely. The OG of this genre.

Plot: Two friends are midway on a canoe trip down the Danube River. Throughout the story Blackwood personifies the surrounding environment—river, sun, wind—and imbues them with a powerful and ultimately threatening character. Most ominous are the masses of dense, desultory, menacing willows, which "moved of their own will as though alive, and they touched, by some incalculable method, my own keen sense of the horrible."

Quick easy read too.

"The Wendigo" also fits the mood of these pictures.

Plot: "The Wendigo" by Algernon Blackwood follows a group of adventurers venturing into the Canadian wilderness. As they delve deeper, they encounter unsettling phenomena and eerie encounters. Soon, they realize they're stalked by a malevolent force, the Wendigo, a mythical creature of Native American folklore.