Man thats a heck of a question, there are so many places to explore around Missoula. Just which one is tough.
When I am up in July I am hoping to do do the 38 road from Hamilton into Georgetown lake. Last year explored around Georgetown lake up into Storm Lake. The high alpine lakes are so amazing crystal clear and nobody there.
So yes you can drop south to Hamilton over the 38 into Georgetown lake and up hwy 1 to I-90 back into Missoula.
Just South of town is a road called Miller creek road and it heads out east and ties into Scwartz rd. back into I 90
So prep your truck take a buddy gather all the topo maps gps unit the montana atlas and Gazetter and have a blast.

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