Beautiful ride up to pristine lakes. Easy at first, but gets technical with lots of roots, rocks, and switchbacks. 4.5 miles one way to Emerald lake, then an additional 1.5 miles to Heather lake. Uphill all the way, but it's a great ride down. Watch for hikers and horses.
How to get there:
South of Bozeman down Hyalite Canyon road, about a mile past the waterfall.