Decision Point
In June 1805, the Lewis and Clark Expedition reached a fork in the Missouri River unlike anything they had encountered before. Instead of a single channel leading west, two large rivers stretched before them.
The Corps of Discovery faced a critical question:
Which river was the true Missouri?
The decision would determine the route of the expedition and ultimately influence the success of their journey to the Pacific Ocean.
After several days of exploration, observation, and debate, Meriwether Lewis concluded that the south fork was the Missouri River. The Corps continued upstream, following what we now know as the Missouri through the Missouri River Breaks and toward the Rocky Mountains.
Today, the location is known as Decision Point and is recognized as one of the most significant sites along the Lewis & Clark National Historic Trail.
“I had myself almost come to the conclusion that the north fork was the shortest way to the Columbia.”
— Meriwether Lewis, June 13, 1805
Experience the Landscape
One of the remarkable things about Decision Point is how much the landscape still resembles what Lewis and Clark saw more than two centuries ago.
From the overlook, visitors can see the confluence of the Marias and Missouri Rivers and appreciate the challenge faced by the expedition. Standing here, it’s easy to understand why the Corps struggled to determine which channel to follow.
The surrounding prairie, river breaks, and distant horizons remain largely undeveloped, offering a glimpse of the American West as the explorers experienced it.
Visiting Decision Point
Decision Point is located approximately 20 miles west of Fort Benton and can be reached by vehicle.
Directions from Fort Benton
- Travel west from Fort Benton on Highway 87.
- Follow signs toward the Missouri River Breaks area and Decision Point.
- Continue to the designated parking and trail area.
- A short walk leads to the overlook.
Road conditions can vary depending on weather and season. Visitors should check current conditions and allow extra time when traveling on gravel roads.
Before You Go
Many visitors choose to begin their Lewis & Clark journey in Fort Benton.
Before heading to Decision Point, consider visiting:
- Montana’s Lewis & Clark Memorial
- Missouri River Breaks Interpretive Center
- The Lewis & Clark Trail page
- The Levee Walk and interpretive signs
Together, these sites provide valuable context for understanding the expedition’s journey through this region.