Final answer:
The trail hackers were members of the Corps of Discovery led by Lewis and Clark. They faced challenges and collected valuable information during their expedition.
Step-by-step explanation:
The trail hackers were the members of the expedition led by Meriwether Lewis and William Clark, also known as the Corps of Discovery. They were tasked by President Thomas Jefferson to explore the newly acquired western lands of the United States. During their expedition, the trail hackers encountered various challenges such as extreme weather, insects, dangerous animals, and illness. They also collected valuable information about the customs of the indigenous tribes, geography, flora, and fauna.