MT DIABLO INTERPRETIVE ASSOC

As filed

Subsection

03

NTEE code

N320

Classification

2000

Street

PO BOX 346

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2025

• EDUCATION CENTER-MDIA IS PARTNERING WITH THE WILDLIFE CONSERVATION BOARD TO DEVELOP THE MITCHELL CANYON VISITOR CENTER PROVIDING VISITORS WITH STATE PARK HISTORY, EDUCATION ABOUT HABITAT AND WILDLIFE, TRAIL MAPS, AND A MEETING POINT FOR ALL VISITORS.

  Expenses $284,550

• MAINTENANCE OF PARK FACILITIES - FUNDING OF PARK MAINTENANCE PROJECTS AND EVENTS, INCLUDING EARTH DAY AND OTHER PARK RESTORATION EVENTS, TRAIL MAINTENANCE AND SIGNAGE, TRASH REMOVAL AND PURCHASE OF PARK EQUIPMENT.

  Expenses $8,096

• INTERPRETATION AND OUTREACH - FUNDING OF MERCHANDISING AND OPERATION OF TWO VISITOR CENTERS, VOLUNTEER ASSISTANCE PROGRAMS, SCHOOL AND JR. RANGER PROGRAMS, INTERPRETIVE TALKS AND EVENTS, HIKES, NATIVE PLANT GARDEN, AND INTERPRETIVE WEBSITE.

  Expenses $5,900

• PUBLICATIONS AND VIDEOS - CREATION, PUBLICATION AND DISTRIBUTION OF INTERPRETIVE PUBLICATIONS AND VIDEOS.

  Expenses $5,221

As filed on the 2025 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

• 2025

  Revenue

  $394,360

  Expenses

  $325,946

  Contributions

  $267,162

  Grants paid

  $0

• 2024

  Revenue

  $457,098

  Expenses

  $196,696

  Contributions

  $354,886

  Grants paid

  $0

• 2023

  Revenue

  $541,060

  Expenses

  $333,444

  Contributions

  $448,437

  Grants paid

  $0

• 2022

  Revenue

  $284,012

  Expenses

  $76,908

  Contributions

  $216,445

  Grants paid

  $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

• 2021 · 990

  Revenue

  $124,906

  Expenses

  $103,662

  Assets (EOY)

  $557,235

• 2020 · 990

  Revenue

  $42,219

  Expenses

  $49,844

  Assets (EOY)

  $535,651

• 2019 · 990

  Revenue

  $116,232

  Expenses

  $86,728

  Assets (EOY)

  $547,105

• 2018 · 990

  Revenue

  $127,624

  Expenses

  $72,150

  Assets (EOY)

  $518,480

• 2017 · 990-EZ

  Revenue

  $121,760

  Expenses

  $56,635

  Assets (EOY)

  $461,495

• 2016 · 990-EZ

  Revenue

  $118,343

  Expenses

  $93,338

  Assets (EOY)

  $396,872

• 2015 · 990-EZ

  Revenue

  $122,420

  Expenses

  $90,686

  Assets (EOY)

  $373,690

• 2014 · 990-EZ

  Revenue

  $98,005

  Expenses

  $77,130

  Assets (EOY)

  $335,852

• 2013 · 990-EZ

  Revenue

  $124,699

  Expenses

  $84,390

  Assets (EOY)

  $314,516

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

• SAVE MOUNT DIABLO

  $30,000

  2022 · Education Center

• DONOR ADVISED CHARITABLE GIVING

  $27,100

  2022 · HUMAN SERVICES

• FIDELITY INVESTMENTS CHARITABLE GIFT FUND

  $26,650

  2022 · For grant recipient's exempt purposes

• EAST BAY COMMUNITY FOUNDATION

  $17,121

  2023 · MITCHELL CANYON VISITORS CENTER

• FIDELITY INVESTMENTS CHARITABLE GIFT FUND

  $10,550

  2024 · For grant recipient's exempt purposes

• EAST BAY COMMUNITY FOUNDATION

  $10,000

  2022 · MITCHELL CANYON VISITORS CENTER

Other IRS files