# Eastern Colorado Historical Society

Eastern Colorado Historical Society is a Nonprofit Organization based in Cheyenne Wls, United States.

## Overview

- **Organization type:** Nonprofit Organization
- **Headquarters:** Cheyenne Wls, United States
- **Region:** North America

## About

The IRS Exempt Organizations Business Master File snapshot retrieved on 2026-10-14 identifies Eastern Colorado Historical Society as a tax-exempt nonprofit organization exempt under Section 501(c)(3). Its Employer Identification Number is 81-3381825. Its reported mailing city is Cheyenne Wls, Colorado, United States. The retained registry records an IRS exemption ruling in August 2016 and reported NTEE classification code A54. The ruling date is not a founding date. Original retained record: IRS Exempt Organizations Business Master File, eo3.csv, EIN 81-3381825. These dated registry facts do not establish current operations, current finances, assets under management or an investment mandate. No financial amounts are stated in this registry-only record.

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Updated: 2026-10-25T19:08:42Z

Canonical page: https://altss.com/profile/eastern-colorado-historical-society

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