HikingNational Forest TrailTraildbo2026-04-25T17:01:30From Dillon travel 3 miles south on I-15 to Highway 278 then west for 35 miles to the top of Big Hole Pass then gravel road 7340 south 6 miles to the trail sign.145.20551-112.642634DillonBeaverhead-Deerlodge National ForestMT420 Barrett Street59725The last 0.5 mile of Harrison Lake Trail crosses a boulder field the lake is on a bench to the west just below the Big Hole Divide.Length: 5.0 milesTrail Begins: Forest Road 7340Trail Ends: Harrison LakeArea Map: Interagency Visitor Map: Southwest Montana USGS Map1: Tash PeakTownship 6S; Range 13W; Section 27406-683-3900406-683-3855Dillon57851|http://www.visitmt.com|Y#11|http://www.wintermt.com|#32|http://www.lewisandclark.state.mt.us|#94|http://indiannations.visitmt.com|Harrison Lake TrailGOLD WESTGold WestNational Forest Trailhttp://www.fs.usda.gov/bdnf