Summit Post details this trail nicely and includes photographs.
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Adapted from Summitpost.org:
Trico Mountain is an easy scramble in the beautiful Alpine Lakes Wilderness. It is located on the same Wenatchee Mountain ridge as Granite Mountain, and both peaks are often climbed in a day. The most common route to the top starts at the Robin Lakes which are great hiking destinations themselves. Views from the summit are fantastic, including neighboring Mt. Daniel, Mt. Stuart, and several of the cascade volcanos. The mountain’s name comes from the fact that it is located on the boundary line of three counties (King, Chelan, and Kittitas).
Nearest Town: Leavenworth/Plain
From I-90, drive east of Snoqualmie Pass and take exit 80. Drive north through Roslyn and Salmon la Sac. When the pavement ends and the road forks, take the right-hand direction towards Tacquala Meadows. Drive this road to where it ends (about another 12 miles) which is the Hyas Lake/Deception Pass trailhead.
Leave It Better than You Found It. This should be every user’s goal. Pick up trash left by others, pull noxious weeds along your route, throw branches over unwanted spur trails, etc.
Disclaimer. Treat this information as recommendations, not gospel. Conditions change and those contributing these reports are volunteers–they may make mistakes or not know all the issues affecting a route. You are responsible for yourself, your actions, and your safety. If you won’t accept that responsibility, you are prohibited from using our information.