[7] David Thompson, an English-Canadian fur trader, ignoring the Salish name already given, renamed the hill 'Brown Knowl' when he climbed in on February 26, 1812.

Since then, additional land purchases have opened a total of 1,800 acres across Mount Jumbo to public access as well as wildlife preservation.

Most parts of the mountain are closed during the winter to protect the elk that are under more stress at this time of year due to harsh weather and decreased food availability.

[9] Invasive weeds such as spotted knapweed, leafy spurge, cheatgrass, sulphur cinquefoil, Dyer's woad, and Dalmatian toadflax are established across Mount Jumbo.

Community weed-pulls organized by Missoula City as well as student, conservation and other private groups work to remove thousands of pounds of weeds from the mountain's face every year.

[10] Hiking Mountain Biking Flora and Fauna Fauna of interest seen on Mount Jumbo include: whitetail deer, mule deer, black bear, elk, mountain lions, coyotes, wolves, lynx, red fox, swallowtail butterflies, Blue Grouse, Lazuli Buntings, blue birds and falcons.

Flora highlights include: service berry, hawthorn, ninebark, bluebunch wheatgrass, Ponderosa pine and Douglas fir.