I mainly fish in the lakes near West Cliff like the Sand Creek Lakes and Commanche Lake to name a few. I have the best luck with Orange Panther Martins (the small ones) and Orange Kast Masters (The samall ones). I find that if a panther martin does not catch anything a kast master will.
If it is a place fished by a lot of lures and flys worms work great
When I was younger Id fish the Taylor River with Worms never waited more than 10 seconds to catch a Monster fish.
I fish from a Krill (Purse) with an assortmant of lures (Panther Martin, Rooster Tails, Rappala, Kast Master) a bunch of hooks, worms, salmon eggs, power bait and of course the hardware to use it all, swivels, weights bobbs and such. Wearing it like a purse you are very adjile and can move to the fish...
Always laughed at the guys with the HUGE tackle boxes trying to carry them around.
Remember Small Bait Catches Big Fish, Go Small! Use the smallest lures you can find (within reason).
In my findings Brown Trout are smart and old wise ones will know how to avoid your lures. To get them i pull out the fly rod.
So you are going to Aspen Where are you From? I am in Pueblo, CO (Nm Just realiezed who you were Silly Question)