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SUMMARY: Lesquerel la humi lis is endemic to the state 

 of Montana, and is narrowly restricted to a small 

 geographic area in the Bitterroot Range in Ravalli 

 County. It is currently listed as a sensitive species 

 in Region 1 of the U.S. Forest Service. The species is 

 known only from three summits, and the estimated total 

 number of individuals is approximately 1500-1B00. 

 Intensive surveys on adjacent summits, and throughout 

 the Bitterroot Range, have failed to reveal the 

 presence of any other populations. One population, on 

 St. Mary Peak, is possibly being impacted by 

 recreational use of the area; in addition, a lookout 

 tower is located on the summit. Two other populations, 

 on and east of St. Joseph Peak, are not currently 

 accessed by maintained trails. Although they occur in 

 the Selway-Bi tterroot Wilderness Area, any proposed 

 management activities near the known populations of L. 

 humi lis should be carefully planned, owing to the 

 extreme global rarity of the species. 



