A03_Gravel_Pit_Inspections_Report.pdf

PDF 254 KB Posted Mar 19, 2026

Attached to: Purchase Road Chips for Yellowstone NP
Solicitation number: 140P1426Q0047
Issued by: Department of the Interior National Park Service Intermountain Region

About this file

Written by GovTribe AI · Mar 19, 2026

This is a certification and inspection status document for gravel pit suppliers serving Yellowstone National Park during the 2024-2025 fiscal year.

The document lists 26 gravel pits across Montana, Wyoming, and Idaho with their inspection statuses, operators, locations, contact information, and certification expiration dates (primarily October 1, 2025). Of the listed pits, 17 passed both 2023-2024 and 2024-2025 inspections, 2 failed inspections (Red Pole/North Fork Pit and Cody Stampede), 4 remain not inspected or require approval contact, and 3 have expired or pending approvals. Primary operators include Knife River, HK Aggregates, Croell Aggregates, Sunroc/Depatco, and Fisher Sand and Gravel. Inspections are overseen by three District Vegetation Biologists: Pam Schaefer (Mammoth/North District), Vincent Nagashima (Madison/Lake and West Districts), and Supervisory Vegetation Specialist Steven Bekedam. Suppliers seeking certification or having questions regarding inspections should contact the appropriate district biologist through provided phone numbers and email addresses. The document serves as the current approved supplier roster for gravel and aggregate materials for park operations and construction projects.

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File	Type	Posted
A06_P1426Q0047_Specifications.docx	DOCX document	Mar 19, 2026
Sol_140P1426Q0047.pdf	PDF	Mar 19, 2026

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Yellowstone National Park 2024-2025 Gravel Pit Inspections

Pit Name (operator) County/State Location Contact 2023-2024 Status 2024-2025 Inspected By (contact for info)

Expiration Date

Fisher Livingston Pit (Fisher Sand and Gravel), permit #1268

Park / MT 91 Swingley Rd., Livingston, MT. 406-220-2305 PASSED PASSED Pam Schaefer

(307) 250-5550

10/1/25

Durgan Pit (Durgan Rock Pile), permit #

Park / MT 167 Pine Creek Rd. Livingston, MT 406-222-0525 Not inspected, contact Pam Schaefer for approval

Not inspected, contact Pam Schaefer for approval

Pam Schaefer

(307) 250-5550 expired, contact P.

Schaefer for approval

Alaska Pit (Knife River), permit #1412

Gallatin/MT 21730 Frontage Rd. Belgrade, MT 59714 (office location)

406-388-6832 Leo.zwemke@knif eriver

PASSED PASSED Pam Schaefer

(307) 250-5550

10/1/25

Belgrade Pit (Knife River), permit # 1982

Gallatin/MT 21730 Frontage Rd. Belgrade, MT 59714

406-388-6832 Leo.zwemke@knif eriver

PASSED PASSED Pam Schaefer

(307) 250-5550

10/1/25

Pipestone Quarry Jefferson/MT 1 Delmoe Lake Road Whitehall, MT 59759

Bart Baumeister;

406-287-9153 406-498-0614 cell

PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Willow Creek Pit (HK) Bonneville/ ID 1523 East 49th North, Idaho Falls, ID 83401

208-270-1970 PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Tower Pit (HK) Bonneville / ID 7185 N 5th E Idaho Falls, ID 83401 208-523-6600 PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Teton Pit (HK) Fremont / ID 110 N. 2300 East Sugar City, ID 83405

208-270-1970 PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Ashcraft Pit (HK) Freemont/ID 210 N 2200 East St. Anthony, ID 83445; HK Office: 6350 S Yellowstone HWY, Idaho Falls, ID

208-270-1970 PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Knife River Big Sky Pit Gallatin / MT Hwy 191, Big Sky, MT 406-388-6832 Not Inspected Not Inspected Vincent Nagashima

(406) 595-0414

N/A

Spanish Peaks Pit (RCI Properties) permit # 3585

Gallatin/MT 1 Mile S of I-90 on E side of Alaska Rd S near Belgrade, MT.

Dwayne Rehbein:

(406) 721-9267 dkrehbein@riversi decontracting.com

Not Inspected PASSED Pam Schaefer

(307) 250-5550

10/1/25

Red Pole (North Fork Pit) (WY Dept of Transportation)

Park/WY Across Hwy from North Fork Campground, Buffalo Bill State Park. West end of Buffalo Bill Reservoir; North of highway

307-568-3400 PASSED FAILED Vincent Nagashima

(406) 595-0414

10/1/25

City of Cody Pit (Park County)

Park/ WY Behind Stampede Rodeo Grounds, West end of the City of Cody, WY

307-587-2958 PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Cody North Pit (Park County, WY)

Park / WY Cody, WY 82414 307-527-8520

PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Cody Stampede Park / WY 41 Sunset Rim Cody, WY 82414 307-587-5155 307-587-4450

FAILED FAILED Vincent Nagashima

N/A

Hendricks Pit (Sunroc/Depatco)

Freemont/ ID 2287 East 200 North St. Anthony, ID 83445

208-458-4000 PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Ashcraft Pit (Sunroc/Depatco)

Freemont/ID 2015 East 200 N St. Anthony, ID 83445

208-458-4000 PASSED Not Inspected Vincent Nagashima

(406) 595-0414

N/A

Alota Sand and Gravel Lincoln/WY 501 County Rd 101 Alpine, WY 83128

307-654-7558 Not Inspected Not Inspected Vincent Nagashima

(406) 595-0414

N/A

Park County Redi-Mix (Croell Aggregates;

Croell Inc.)

Park/WY 105 Rd 2AB Cody, WY 82414 307-899-5858 PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Harris Pit (Croell Aggregates; Croell Inc.)

Park/WY 16 Rd 2BC Cody, WY 82414 307-899-5858 PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Cody Lumber Pit/Redimix Pit (Bighorn Redimix/Canyon Concrete)

Park/ WY North Hwy 120, north of Shone River Bridge, top of hill, right side of road

307-899-2992 PASSED PASSED Vincent Nagashima

(406) 595-0414

10/1/25

Clark Pit #1 (Theil Construction/Little Rock Inc.)

Park/WY PO Box 59 Meeteetse, WY 82433 307-868-9202 307-272-8837

PASSED Not Inspected;

contact Vincent for approval

Vincent Nagashima

(406) 595-0414

N/A

Luckinbill Pit (Nicholson Dirt Contracting)

Park/WY 3747 Hwy 296 Cody, WY 82414 307-278-1278 PASSED Not Inspected;

contact Vincent for approval

Vincent Nagashima

N/A

If you had questions regarding gravel pit inspections or are seeking certification for a supplier not listed please contact:

Steven Bekedam

Supervisory Vegetation Specialist steven_bekedam@nps.gov cell: (541) 760-7289

Vincent Nagashima

District Vegetation Biologist

(Madison/ Lake and West Districts) vincent_nagashima@nps.gov cell: (406) 595-0414 office: 307-344-2603

Pam Schaefer

District Vegetation Biologist

(Mammoth/North District) pamela_schaefer@nps.gov cell: (307) 250-5550 mailto:steven_bekedam@nps.gov mailto:vincent_nagashima@nps.gov mailto:pamela_schaefer@nps.gov

File details come from the government source that posted it. Updated Mar 19, 2026.