The Henry M. Jackson Memorial Visitor Center is Mount Rainier’s main visitor center, in the upper parking area at Paradise on the mountain’s south side, about 5,400 feet up. Stop for ranger advice on roads and trails, exhibits, and the park film; if this is your first time in Paradise, it’s a useful place to get oriented. Come early on a summer weekend if parking close matters: the upper lot can fill and overflow parking may mean an uphill walk back to the entrance. The center keeps shorter hours outside summer, and the road to Paradise closes overnight in winter, so check both before building your day around a visit.