Mahalo
Longmont, CO

South Park Rail Society

EIN 81-3735535
Arts, Culture & Heritage Cultural Heritage & Traditions
Mission

To preserve, restore and operate a segment of the Denver, South Park & Pacific/Colorado & Southern narrow-gauge railroad facilities and rolling stock in Como, Colorado for interpretive and educational purposes.

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

About South Park Rail Society

The South Park Rail Society is a Colorado-based 501(c)(3) nonprofit formed to develop an interactive railway museum by preserving and restoring the historic Como roundhouse, depot, yard, track and rolling stock tied to the Denver, South Park & Pacific/Colorado & Southern lines.

An all-volunteer organization, the Society manages the Como Project (roundhouse, depot, hotel, water tower and track), is rebuilding steam locomotive Klondike Kate #4, and operates volunteer/open-house days that allow the public to experience an historic narrow-gauge railroad facility.

In recent years the organization has advanced restoration work, run regular volunteer and engine-crew work days, run fundraising campaigns to secure the Como site, and earned nonprofit transparency recognition to support continued public and grant funding.

Notable achievements

Como Project stewardship

Took stewardship of the historic Como Roundhouse complex and progressed structural and site restorations to preserve one of the country’s notable narrow-gauge roundhouse sites.

Klondike Kate #4 restoration progress

Completed significant restoration and continuing mechanical work on Baldwin-built Klondike Kate #4, returning steam-era interpretation capability to the Como site.

Transparency recognition

Received a Gold Seal of Transparency from Candid/GuideStar (2024), demonstrating public financial and governance transparency that supports fundraising and grant opportunities.

At a glance

Total assets
$99K
Annual revenue
$72K
Tax status
501(c)(3)Public charity
EIN
81-3735535
Location
Longmont, CO
On Mahalo since
November 2025

Financial figures from the IRS Business Master File, the IRS’s registry of tax-exempt organizations.

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