Big Hole National Battlefield is located 6,300 feet above sea level. Visitors may need to slow their pace when walking. Drinking plenty of fluids is encouraged as summers and winters in the Big Hole Valley can be dry. Weather conditions can vary greatly at any time of year. Layered clothing is highly recommended. Insect repellant is also advisable for a few weeks every summer.
The nearest facilities are in Wisdom, Montana 10 miles east of the battlefield. Wisdom features a gas station, market, and a restaurant.
Cell phone coverage is spotty in the Big Hole Valley.
As of February 22, 2010, a new federal law allows people who can legally possess firearms under applicable federal, state and local laws, to legally possess firearms in this park.
It is the responsibility of visitors to understand and comply with all applicable state, local and federal firearms laws before entering this park. No firearms are permitted inside the Visitor Center.