Mahalo
Castle Rock, CO

Cutthroat Chapter, Trout Unlimited

EIN 23-7188817
Environment & Animal Welfare Wildlife & Habitat Conservation
Mission

To conserve, protect and restore Colorado’s cold-water fisheries and their watersheds.

IRS-recognized 501(c)(3) public charity Contributions are tax-deductible

About Cutthroat Chapter, Trout Unlimited

Cutthroat Chapter (CCTU) is a volunteer chapter of Trout Unlimited focused on conserving, restoring and advocating for Colorado’s cold-water fisheries. It was formed in the early 1960s and is one of the oldest and largest TU chapters in Colorado.

The chapter runs hands-on habitat restoration, water-quality monitoring, and youth education programs and routinely partners with land managers and agencies on priority-waters projects. In the past 2–3 years CCTU has led trail-restoration work in Cheesman Canyon (Gill Trail), donated scientific equipment to state fisheries staff, and organized community plantings and river cleanups.

Notable achievements

eDNA Sampler Donation (2023)

Purchased and donated a compact eDNA sampling system to Colorado Parks & Wildlife in April 2023 to support broad-scale aquatic DNA monitoring efforts.

Gill Trail Restoration & Emergency Response

Spearheaded multi-year Gill Trail restoration planning and implementation; coordinated volunteer trail repairs and signage replacement after the July 31, 2023 flash flood that heavily damaged Cheesman Canyon access and created significant erosion.

Large-scale Riparian Planting (Earth Day 2023)

Organized and staffed an Earth Day 2023 planting at Bear Creek where volunteers planted over 1,000 native trees and shrubs as part of a multi-year partnership to improve riparian habitat.

At a glance

Tax status
501(c)(3)Public charity
EIN
23-7188817
Location
Castle Rock, CO
On Mahalo since
November 2025

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