Along the ICE AGE FLOODS
NATIONAL GEOLOGIC TRAIL

Travelers’ Rest State Park Ice Age Floods National Geologic Trail Located at an historic and contemporary crossroads, Travelers’ Rest State Park and National Historic Landmark is a place where visitors can say with certainty that they are walking in the footsteps of Lewis and Clark. The Park is at the core of a campsite used by the Corps of Discovery from September 9 – 11, 1805 and again from June 30 – July 3, 1806. In the summer of 2002, archaeologists uncovered evidence of the Corps of Discovery’s visit to the area, including a trench latrine tainted with mercury, fire hearths, and lead used in the repair and manufacture of firearms. The discovery makes Travelers’ Rest the only campsite on the Lewis and Clark Trail with physical evidence of the expedition. For centuries Native Americans also used the area as a campsite and trail junction. Salish, Pend d’Oreille and Nez Perce peoples were among those who traditionally occupied the area. Native American storytellers bring their history, culture and society to life as part of the programming at Travelers’ Rest State Park. The Bitterroot River is the primary body of water in this area, now running about 500 feet below the surface of what was once Glacial Lake Missoula, which extended all the way to the area now indicated by a high water marker at Lake Como.  There are few vestiges of the Lake in this area but information and a display are located at the Visitor Center. Travelers’ Rest is an idyllic spot for strolling the park’s trails, and offers a rich bird habitat, with more than 115 species recorded within the park boundaries. Quick Facts Location:Located 1/2 mile west of Lolo on Hwy 12 Significance:Located at the crossroads of culture, this is the only archaeologicaly verified campsite of the Lewis and Clark Expedition, as well as the traditional homeland of the Selis Qlispe people. Designation:National Historic Landmark 

The Paradise Center Ice Age Floods National Geologic Trail Paradise Center, formerly the Paradise Elementary School, is a community, visitors, and arts center in the old railroad community of the same name.  Just below the confluence of the muddy Clark Fork and beautiful blue Flathead Rivers, 70 miles northwest of Missoula, the area was repeatedly inundated by Glacial Lake Missoula, leaving many visible features in the area such as gulch fills, kolks, and lake bottom sediment bluffs. It is on the route between the Camas Prairie Ripples and Eddy Narrows.   Inside the school is a unique interactive 3-D topographical or relief map of the entire area covered by Glacial Lake Missoula and an extensive display of information about the Lake as well as other topics of interest to the area.  Outside on the grounds is a playground and an outdoor walking loop with a dozen or so displays of interest such as the former railroad roundhouse.  A model railroad set-up is also found inside the center. This area can easily be reached directly from the St. Regis exit from I-90 by following the Clark Fork River where flood waters turned sharply to the north, carving out the narrow valley along scenic route 135 to the junction with MT-200. Scour marks and displaced boulders are visible from the road, and it is especially lovely when the larch trees turn bright yellow in the fall. This route also takes you past the historic Quinn’s Hot Springs Resort.  ANNOUNCEMENT: The Paradise Center hours are seasonal, generally Wednesday thru Saturday, 11am-3pm in the summer. Check the website at paradisecentermt.org or call 406-826-0500 Quick Facts Location:2 School House Hill Road Paradise, MT 59856 MANAGED BY:The Paradise Center

Glacial Lake Missoula Strandlines Ice Age Floods National Geologic Trail Imagine you are standing on the edge of glacial Lake Missoula 15,000 years ago. You can hear lapping waves cutting benches known as “strand-lines” into the shoreline. Today, you can see these huge strand-lines on hills surrounding Missoula, Montana, marking changes in lake level over time. On Mount Sentinel, marked with an “M”, and Mount Jumbo, marked with an “L”, the strand-lines are seen as horizontal lines in the vegetation or highlighted by snow in the winter. Public hiking trails switchback through the strand-lines on Mount Sentinel and Mount Jumbo. Ancient shorelines or strand-lines of Glacial Lake Missoula are visible as perfectly parallel horizontal benches on hillside slopes around Missoula. They are most visible with light snow cover, or in low evening light on the mountains marked with an”M” and an “L” on either side of Hellgate Canyon looking east from the downtown.  These shoreline benches cut by wave action in the lake recorded various lake levels as the ice dam blocking the Clark Fork River far upstream on the Idaho border repeatedly failed and refilled 40 times or more.  It may be that as the ice-age waned each successive ice dam that reformed was smaller and failed under less pressure from a lower lake level than the one before, leaving behind its bench as a record of the successively lower ancient lake shorelines. It’s also possible they record winter still-stands in rising lake levels over time.  Quick Facts Location:The Kim Williams Trail at Van Buren and 5th Street leads from the U Montana campus along the river between the mountains. To reachhigh water markers on the mountains see the Interactive Map or go to GlacialLakeMissoula.org