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US nonprofit · EIN 830332000 · Douglas, WYiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 830332000) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2024: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Thunder Basin Grasslands Prairie ECO-System Association

Donations deductible
Revenue
$746k
year to 31 December 2024
Expenses
$568k
year to 31 December 2024
Total assets
$326k
$3k liabilities
Net assets
$323k
assets less liabilities
Directors and trustees
3
6.4y av
Staff
7
employees, year to 31 December 2024
Left since last filing
0
no seats appear to have opened
Officers and senior staff
5
named in Part VII
How am I connected?

Thunder Basin Grasslands Prairie ECO-System Association's network

3 peoplei3 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (3). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

3 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 6 voting members of its governing body on its latest Form 990 Part VI; we list 3 in Part VII (Part VII does not always name every voting member).
NameRole as filedSinceOn the board
Geri ProctorDirector2024
2 yrs
John RiehleDirector2018
8 yrs
Lona NachtmanDirector2018
8 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

5 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Frank EathorneChairmansince 2018
Jewell ReedTreasurersince 2018
Laurel VicklundVice-Chairmasince 2018
Monte ReedTreasurersince 2022
Wanda BurgetVice Chairma2024

Pay and hours

year to 31 December 2024iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Lona NachtmanDirector$0
Geri ProctorDirector$0
John RiehleDirector$0
Wanda BurgetVice Chairma$0
Monte ReedTreasurer$0
Laurel VicklundChairman$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
Thunder Basin Grasslands Prairie Eco-System Association
EIN
830332000
Address
671 Steinle Rd Ste 2, Douglas, WY, 82633-9738
State
Wyoming
Mission
To promote and foster the understanding of prairie grasslands ecosystem management and furthering the public education of land management issues on the prairie grasslands ecosystem. (as filed on the Form 990)
Activity (NTEE)
C30 Environment
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Environment
Size band
4 (IRS master file code)
Formed
1999
Principal officer
Laurel Vicklund (as named on the Form 990)
IRS ruling date
1 October 2002
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsJohn Riehle
≥8years on the filingsLona Nachtman
≥2years on the filingsGeri Proctor

Latest return

year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.
Total assets
$326k
Total liabilities
$3k
Net assets or fund balances
$323k
Contributions and grants received
$738k
Program service revenue
$0
Employees
7

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$746k$568k$178k

As filed on the IRS Form 990. US dollars.