Mining Incidents
Abandoned mine inventory

Abandoned mines in Perry County, Ohio

Perry County, Ohio has 375 mine and prospect features on USGS topographic maps published 1961–2002, including 12 mine openings (shafts, adits and air shafts). OSMRE's abandoned mine land inventory lists 294 problems in the county, 137 of them not yet reclaimed. MSHA's register carries 77 mines in the county with status Abandoned or Abandoned and Sealed.

Every mine and prospect feature the USGS digitized from historical topographic maps covering Perry County, every OSMRE abandoned mine land problem in the county, and every MSHA-registered mine here with status Abandoned. Named features are listed below; unnamed ones are counted by type. Locations are deliberately not shown: this page says what abandoned workings are in the county, not where to find them. They are dangerous and should not be entered.

Mapped mine features (USGS)
375
Mine openings
12
OSMRE problems unreclaimed
137
MSHA mines marked abandoned
77
0 features carry a name0 prospect pits17 quadrangle maps, published 1961–2002 294 OSMRE problems, 157 reclaimed 4 MSHA mines abandoned and sealed
What the features are
  1. Mine openings
    shafts, adits, air shafts, portals and vertical openings: the ways into underground workings
    76 11.4%
  2. Mines and surface workings
    labelled mines, open pits, strip mines, placer and hydraulic workings
    335 50.1%
  3. Quarries, gravel and borrow pits
    construction-material and industrial-mineral extraction
    18 2.7%
  4. Dumps, tailings, spoil and gob
    what mining left above ground
    35 5.2%
  5. Mills, tipples and facilities
    processing plants and hazardous structures
    20 3.0%
  6. Other reclamation problems
    highwalls, subsidence, polluted or clogged water, fires, slides and gases in OSMRE's inventory
    185 27.7%
OSMRE abandoned mine land problems294 on inventory
Problem area Problem Status
Allison Subsidence P1 Subsidence Reclamation Completed
Altier Subsidence P1 Subsidence Reclamation Completed
Amish Ridge Road Subsidence P1 Subsidence Reclamation Completed
Anderson Subsidence P1 Subsidence Reclamation Completed
Artheusa Springs P1 Subsidence Reclamation Completed
Artheusa Springs P1 Vertical Openings Reclamation Completed
Artheusa Springs P2 Clogged Stream Lands Reclamation Pending
Artheusa Springs P2 Dangerous Highwalls Reclamation Completed
Artheusa Springs P2 Hazardous Water Bodies Reclamation Completed
Artheusa Springs P3 Spoil Area Reclamation Completed
Barbara Johnson Subsidence P1 Subsidence Reclamation Completed
Bear Creek P1 Clogged Streams Reclamation Pending
Bear Creek P1 Dangerous Highwalls Reclamation Pending
Bear Creek P2 Clogged Stream Lands Reclamation Pending
Bear Creek P2 Dangerous Highwalls Reclamation Pending
Bear Creek P3 High Wall Reclamation Pending
Bear Creek Northeast P2 Clogged Stream Lands Reclamation Pending
Bear Creek Northeast P3 Spoil Area Reclamation Pending
Bear Creek Northwest P1 Dangerous Highwalls Reclamation Pending
Bear Creek Northwest P1 Dangerous Impoundments Reclamation Pending
Bear Creek Northwest P2 Clogged Stream Lands Reclamation Pending
Bear Creek Northwest P3 Spoil Area Reclamation Pending
Bessie Furnace Shaft P1 Portals Reclamation Pending
Bessie Furnace Shaft P1 Vertical Openings In Reclamation
Bessie Furnace Shaft P1 Vertical Openings Reclamation Completed
Brigglesville P1 Dangerous Impoundments Reclamation Completed
Brigglesville P2 Dangerous Highwalls Reclamation Pending
Brigglesville P2 Vertical Openings Reclamation Completed
Brigglesville P3 Spoil Area Reclamation Pending
Brigglesville West P2 Clogged Stream Lands In Reclamation
Brigglesville West P2 Clogged Streams In Reclamation
Bristol East P1 Portals Reclamation Pending
Bristol East P1 Subsidence Reclamation Completed
Bristol East P2 Clogged Stream Lands Reclamation Completed
Bristol East P2 Dangerous Slides Reclamation Completed
Bristol East P2 Portals Reclamation Completed
Bristol East P2 Subsidence Reclamation Completed
Bristol East P3 Gobs Reclamation Pending
Bristol Ridge East P1 Clogged Stream Lands Reclamation Pending
Bristol Ridge East P1 Dangerous Impoundments Reclamation Pending
Bristol Ridge East P2 Clogged Stream Lands Reclamation Pending
Bristol Ridge East P2 Clogged Streams Reclamation Pending
Bristol Ridge East P2 Dangerous Highwalls Reclamation Pending
Bristol Ridge East P3 High Wall Reclamation Pending
Bristol Ridge East P3 Slurry In Reclamation
Bristol Ridge East P3 Spoil Area Reclamation Pending
Bristol Ridge West P2 Dangerous Highwalls In Reclamation
Bristol Ridge West P3 Pits Reclamation Completed
Bristol Ridge West P3 Spoil Area In Reclamation
Bristol West P2 Clogged Stream Lands Reclamation Completed
Bristol West P3 Gobs Reclamation Pending
Bristol West P3 Pits Reclamation Pending
Bristol West P3 Spoil Area Reclamation Pending
Burley Run P2 Clogged Stream Lands Reclamation Pending
Burley Run P2 Clogged Streams Reclamation Pending
Burr Oak - Perry County P1 Portals Reclamation Completed
Burr Oak - Perry County P1 Vertical Openings Reclamation Completed
Burr Oak - Perry County P2 Portals Reclamation Pending
Clarksville P2 Clogged Stream Lands Reclamation Completed
Clayton Road 29 Subsidence P1 Subsidence Reclamation Completed
Clover Hill South P2 Hazardous Water Bodies Reclamation Completed
Congo P2 Dangerous Highwalls Reclamation Pending
Congo P2 Portals Reclamation Completed
Congo P3 High Wall Reclamation Pending
Congo P3 Spoil Area Reclamation Pending
County Road #68 P2 Clogged Stream Lands Reclamation Completed
County Road #68 P3 Mine Opening Reclamation Completed
County Route 41 P1 Clogged Streams Reclamation Pending
County Route 41 P1 Portals Reclamation Pending
County Route 41 P1 Vertical Openings Reclamation Pending
County Route 41 P3 Other In Reclamation
Crooksville P1 Vertical Openings Reclamation Completed
Crooksville North P2 Clogged Stream Lands Reclamation Completed
Crooksville North P2 Portals Reclamation Completed
Drakes South P2 Hazardous Equip & Facilities Reclamation Pending
Drakes South P2 Portals Reclamation Pending
Drakes South P2 Vertical Openings Reclamation Pending
Drakes Wetland P3 Water Problems Reclamation Completed
Drakes Wetland P3 Water Problems Reclamation Completed
Dugan Ridge P1 Subsidence Reclamation Pending
Dugan Ridge P1 Vertical Openings Reclamation Completed
Dugan Ridge P2 Vertical Openings Reclamation Completed
Eagle's Peak P2 Hazardous Water Bodies Reclamation Completed
Fisher Subsidence P1 Subsidence Reclamation Completed
Front Street Subsidence P1 Subsidence Reclamation Completed
Gardner Street Subsidence P1 Subsidence Reclamation Completed
Gosline P1 Dangerous Highwalls Reclamation Pending
Gosline P1 Hazardous Water Bodies Reclamation Completed
Gosline P1 Subsidence Reclamation Completed
Gosline P2 Dangerous Highwalls Reclamation Completed
Gosline P2 Vertical Openings Reclamation Pending
Gosline P3 High Wall Reclamation Completed
Gosline P3 High Wall Reclamation Completed
Gosline P3 Pits Reclamation Completed
Gosline P3 Spoil Area Reclamation Completed
Gosline P3 Spoil Area In Reclamation
Gosline P3 Spoil Area Reclamation Completed
Green Subsidence P1 Subsidence Reclamation Completed
Halsey Subsidence P1 Subsidence Reclamation Completed
Harmon Subsidence P1 Subsidence Reclamation Completed
Hemlock Shafts P1 Vertical Openings Reclamation Pending
Higley St Subsidence P1 Subsidence Reclamation Completed
Indian Run P3 Other In Reclamation
Jobs Hollow Doser P3 Water Problems Reclamation Completed
Jobs Hollow Doser P3 Water Problems Reclamation Completed
Jobs Hollow Doser P3 Water Problems Reclamation Completed
Jobs Hollow Grimmett P3 Gobs Reclamation Completed
Jobs Hollow Grimmett P3 Gobs Reclamation Completed
Jobs Hollow Grimmett P3 Water Problems Reclamation Completed
Jobs Hollow Grimmett P3 Water Problems Reclamation Completed
John Harman Subsidence P1 Subsidence Reclamation Completed
Johnson Drive Subsidence P1 Subsidence Reclamation Completed
Jones Lake P2 Surface Burning Reclamation Completed
Jones Lake P3 Water Problems Reclamation Completed
Little Hocking-sunday Creek P3 Mine Opening Reclamation Completed
Little Hocking-sunday Creek P3 Mine Opening Reclamation Completed
Long Subsidence P1 Subsidence Reclamation Completed
Lost Run North P1 Portals Reclamation Pending
Lost Run North P1 Vertical Openings Reclamation Pending
Lost Run North P2 Dangerous Highwalls Reclamation Pending
Lost Run North P2 Portals Reclamation Pending
Lost Run North P2 Vertical Openings Reclamation Pending
Lost Run North P3 High Wall Reclamation Pending
Lost Run-perry P2 Portals Reclamation Pending
Lost Run-perry P3 Slump Reclamation Pending
Lost Run-perry P3 Spoil Area Reclamation Pending
Lost Run-perry P3 Water Problems In Reclamation
Marie Allison Subsidence P1 Subsidence Reclamation Completed
Mc Cluney Creek South P1 Dangerous Slides Reclamation Completed
Mc Cluney Creek South P2 Clogged Stream Lands Reclamation Pending
Mc Cluney Creek South P2 Clogged Streams Reclamation Pending
Mc Cluney Creek South P2 Portals Reclamation Pending
Mckinley Avenue Emergency P1 Vertical Openings Reclamation Completed
Mcluney Creek P1 Dangerous Highwalls In Reclamation
Mcluney Creek P2 Dangerous Highwalls Reclamation Pending
Mcluney Creek P3 Spoil Area Reclamation Pending
Mellan Subsidence P1 Subsidence Reclamation Completed
Mellwood Drive Subsidence P1 Subsidence Reclamation Completed
Milligan P2 Vertical Openings Reclamation Pending
Moores Junction P1 Hazardous Equip & Facilities Reclamation Pending
Moores Junction P1 Portals Reclamation Pending
Moores Junction P3 Gobs Reclamation Pending
Moores Junction North P1 Vertical Openings Reclamation Pending
Moores Junction North P1 Vertical Openings Reclamation Completed
Moores Junction North P2 Clogged Stream Lands Reclamation Completed
Moores Junction North P2 Portals Reclamation Pending
Moores Junction S P1 Portals Reclamation Pending
Moores Junction S P2 Clogged Stream Lands Reclamation Pending
Moores Junction S P3 Spoil Area Reclamation Pending
Moxahala P1 Hazardous Water Bodies Reclamation Pending

…and 144 more problems not listed here.

Problem types carry OSMRE's priority prefix: P1 and P2 are threats to health, safety and property, P3 is environmental. A problem area is a cluster of problems reclaimed as one project; several rows can share one location.

MSHA-registered mines with status Abandoned77 on register
  1. Beckco No 3 Strip
    Surface coal · Becko Construction Co · MSHA ID 3303335
    Abandoned
  2. Bristol Ug
    Underground coal · E & F Coal Company · MSHA ID 3300870
    Abandoned
  3. Buckingham
    Surface coal · Buckingham Mining & Reclamation · MSHA ID 3304025
    Abandoned
  4. Buckingham Mine
    Facility coal · CCU Coal and Construction LLC · MSHA ID 3304526
    Abandoned
  5. Buckingham Mine
    Surface coal · CCU Coal and Construction LLC · MSHA ID 3304520
    Abandoned
  6. Carson Mine
    Surface coal · Carson Productions Inc · MSHA ID 3303006
    Abandoned
  7. Carson Mine
    Surface coal · Carson Productions Inc · MSHA ID 3303965
    Abandoned
  8. CCU Perry Strip
    Surface coal · CCU Coal and Construction LLC · MSHA ID 3304336
    Abandoned
  9. Chilcote Strip
    Surface coal · Chilcote Coal Company Inc · MSHA ID 3300869
    Abandoned
  10. Clay Bank Strip
    Surface coal · Ohio Amco Inc · MSHA ID 3301284
    Abandoned
  11. Columbus Clay Plant
    Facility metal/non-metal · Columbus Clay Manufacturing Company · MSHA ID 3302470
    Abandoned
  12. Congo
    Surface coal · Avis Coal Company · MSHA ID 3304239
    Abandoned
  13. Congo Strip
    Surface coal · Peabody Coal Company · MSHA ID 3301263
    Abandoned
  14. Cook No 3 Strip
    Surface coal · Cook Coal Company Inc · MSHA ID 3303693
    Abandoned
  15. Corning #1
    Surface coal · Eagle Stone Inc · MSHA ID 3303734
    Abandoned
  16. Corning No 1 Strip
    Surface coal · Fee Brothers Mining Inc · MSHA ID 3303718
    Abandoned
  17. Corning Strip
    Surface coal · Grim & Withem Coal Company · MSHA ID 3303651
    Abandoned
  18. Dennis Strip Mine
    Surface coal · Dennis Clay Company · MSHA ID 3303976
    Abandoned
  19. Essex Hollow (Strip)
    Surface coal · Avis Coal Company · MSHA ID 3303969
    Abandoned
  20. Funk Strip Mine
    Surface coal · Ed Funk Coal Company · MSHA ID 3302132
    Abandoned
  21. Gibbons
    Surface coal · Gibbons Construction Company · MSHA ID 3303885
    Abandoned
  22. Glass Rock Operation
    Surface metal/non-metal · Premier Silica LLC · MSHA ID 3301354
    Abandoned
  23. H & I No 1
    Facility coal · H & I Construction Inc · MSHA ID 3303880
    Abandoned
  24. Hocking Valley #2
    Surface coal · Hocking Valley Mining Inc · MSHA ID 3304199
    Abandoned
  25. Jobs Hollow
    Surface coal · Daft Coal Company Inc · MSHA ID 3304067
    Abandoned
  26. Junction City Shole Pit And Plant
    Surface metal/non-metal · Junction City Clay Company · MSHA ID 3302677
    Abandoned
  27. Keiner Loading Dock
    Facility coal · Kiener Contractors · MSHA ID 3303777
    Abandoned
  28. Kendell Pit
    Surface coal · Muskingum Valley Augering Corp · MSHA ID 3301291
    Abandoned
  29. King #1
    Surface coal · M & S Mining Company Inc · MSHA ID 3303870
    Abandoned
  30. King #1
    Surface coal · Charles Roberts Excavating · MSHA ID 3303890
    Abandoned
  31. King #1 Tipple
    Facility coal · Eastern Fuel Services Inc · MSHA ID 3303891
    Abandoned
  32. Kishler Trucking & Mining Incorporated
    Surface metal/non-metal · Kishler Trucking & Mining Inc · MSHA ID 3300496
    Abandoned
  33. Lominco Strip 002
    Surface coal · Lominco Inc · MSHA ID 3303495
    Abandoned
  34. Lox Strip
    Surface coal · Lox Construction Inc · MSHA ID 3303807
    Abandoned
  35. Ludowici-Celadon Donnelly Pit & Mil
    Surface metal/non-metal · Ludowici-Celadon Company · MSHA ID 3300498
    Abandoned
  36. MAXVILLE QUARRIES, INC.
    Surface metal/non-metal · Maxville Quarries Inc · MSHA ID 3300106
    Abandoned
  37. Merckle Strip
    Surface coal · Merckle Mining Company · MSHA ID 3301264
    Abandoned
  38. Merco Strip #4
    Surface coal · Merco Mining Inc · MSHA ID 3303867
    Abandoned
  39. Moore Strip
    Surface coal · Sand Ridge Coal · MSHA ID 3304028
    Abandoned
  40. Morris No 1 Strip
    Surface coal · Morris Gravel Company · MSHA ID 3303364
    Abandoned
  41. New Lexington #2 Strip
    Surface coal · Brown Mining Corp · MSHA ID 3301262
    Abandoned
  42. No 1 Strip
    Surface coal · Jc Coal Company · MSHA ID 3301282
    Abandoned
  43. No 1 Strip
    Surface coal · David Boyle Inc · MSHA ID 3303928
    Abandoned
  44. Norma (Strip)
    Surface coal · Knowltons Industries · MSHA ID 3303951
    Abandoned
  45. Nutter Bros No 1 Tipple
    Facility coal · Nutter Brothers Coal Company Inc · MSHA ID 3300875
    Abandoned
  46. Nutter Brothers Coal Company
    Surface metal/non-metal · Nutter Brothers Coal Company · MSHA ID 3304303
    Abandoned
  47. Perry Strip
    Surface coal · Hornco Mining Company · MSHA ID 3303739
    Abandoned
  48. Pine Run Mine
    Surface coal · Falls Creek Energy Company Inc · MSHA ID 3304347
    Abandoned
  49. Prep Plant 1
    Facility coal · Proco Inc · MSHA ID 3303764
    Abandoned
  50. Radcliff Pits
    Surface coal · Harley E Calvin & Company · MSHA ID 3301305
    Abandoned
  51. Redfield No 2 Strip
    Surface coal · Mid-Ohio Mining Company · MSHA ID 3303470
    Abandoned
  52. Redfield Strip #1
    Surface coal · Surface Mining Inc · MSHA ID 3303381
    Abandoned
  53. Rehoboth
    Surface coal · Ryland & Ryland Inc · MSHA ID 3303660
    Abandoned
  54. Rehoboth
    Facility coal · Transpacific Technology (Ohio) Inc · MSHA ID 3304056
    Abandoned
  55. Rush Creek Clay Co Pit & Mill
    Surface metal/non-metal · Rush Creek Clay Company · MSHA ID 3300561
    Abandoned
  56. Saltillo (Strip)
    Surface coal · Saltillo Coal Company Inc · MSHA ID 3303972
    Abandoned
  57. Saltillo Mine
    Surface metal/non-metal · TOM LLC · MSHA ID 3304300
    Abandoned
  58. Sands #1
    Surface coal · Valley Mining, Inc. · MSHA ID 3304077
    Abandoned
  59. Seamco Strip #1
    Surface coal · Seamco Inc · MSHA ID 3304031
    Abandoned
  60. Shawnee Mine
    Surface coal · Shawnee Coal Company · MSHA ID 3303529
    Abandoned
  61. Sidwell No 2 Auger
    Surface coal · Sidwell Brothers Inc · MSHA ID 3300877
    Abandoned
  62. Somerset Lime & Stone Incorporated
    Surface metal/non-metal · Somerset Lime & Stone Inc · MSHA ID 3300646
    Abandoned
  63. Somerset-Strip
    Surface coal · Zanesville Coal Company · MSHA ID 3302909
    Abandoned
  64. Star Strip
    Surface coal · Star Mining Company Inc · MSHA ID 3300992
    Abandoned
  65. Sterling Strip
    Surface coal · Sterling Coal Company · MSHA ID 3301280
    Abandoned
  66. Sunnyhill #9 North
    Underground coal · Peabody Coal Company · MSHA ID 3301069
    Abandoned and Sealed
  67. Sunnyhill #9 South
    Underground coal · Peabody Coal Company · MSHA ID 3301068
    Abandoned and Sealed
  68. Sunnyhill 4
    Underground coal · Peabody Coal Company · MSHA ID 3301193
    Abandoned and Sealed
  69. Sunnyhill 5
    Underground coal · Peabody Coal Company · MSHA ID 3303727
    Abandoned and Sealed
  70. Sunnyhill Auger
    Surface coal · Ohio Amco Inc · MSHA ID 3301307
    Abandoned
  71. Sunnyhill No 3
    Underground coal · Peabody Coal Company · MSHA ID 3300991
    Abandoned
  72. Sunnyhill Prep Shop
    Facility coal · Fcr/Tri-State Reclamation · MSHA ID 3302045
    Abandoned
  73. Sunnyhill Underground No 7 Mine
    Underground coal · Peabody Coal Company · MSHA ID 3301067
    Abandoned
  74. Tri State
    Surface coal · Tri State Coal Sales Inc · MSHA ID 3304008
    Abandoned
  75. Weslo Mine #1
    Surface coal · Weslo Inc · MSHA ID 3304302
    Abandoned
  76. Wills Creek #1 (Strip)
    Surface coal · Wills Creek Energy Company · MSHA ID 3303895
    Abandoned
  77. Yarger Strip Mine
    Surface coal · Sandra Mining Inc · MSHA ID 3301931
    Abandoned

Status and date are as reported to MSHA by the operator. Each mine's own page carries its accident, citation and inspection record.

By source vocabularythe publishers' own terms
Feature type Features
Strip Mine 333
P1 Subsidence 41
P1 Vertical Openings 24
P3 Water Problems 23
P3 Spoil Area 22
P2 Clogged Stream Lands 20
P2 Dangerous Highwalls 15
P1 Portals 15
P2 Vertical Openings 14
P3 Gobs 12
P3 High Wall 12
Adit 11
P2 Portals 11
Tipple 10
P2 Clogged Streams 9
P3 Mine Opening 9
P1 Dangerous Highwalls 8
P2 Subsidence 6
P3 Pits 6
P3 Other 6
P1 Hazardous Equip & Facilities 6
P1 Dangerous Impoundments 5
P1 Hazardous Water Bodies 5
P2 Hazardous Water Bodies 4
P2 Hazardous Equip & Facilities 4
Gravel Pit 4
Clay Pit 4
Sand Pit 3
P2 Surface Burning 3
P1 Dangerous Slides 3
Quarry 3
P1 Clogged Streams 2
Gravel/Borrow Pit - Undifferentiated 2
P2 Dangerous Slides 2
Disturbed Surface 2
Air Shaft 1
P3 Slurry 1
P1 Underground Mine Fires 1
P1 Dangerous Piles & Embankments 1
P3 Slump 1
Quarry 1
P1 Clogged Stream Lands 1
P2 Polluted Water: Agricultural & Industrial 1
Clay Pit 1
P1 Polluted Water: Human Consumption 1
Other counties in OhioAll counties →
How to read these numbers

A USGS feature is a symbol on a historical topographic map, there when the map was surveyed; it may since have been sealed, reclaimed, built over or reopened as a working mine, and the map does not say which. An OSMRE row is a problem the abandoned mine land program tracks, not a mine. An MSHA mine is a registered operation whose operator reported abandonment, a record that starts in the 1970s. The three overlap and are never added together. The county is assigned from each feature's coordinates against the Census 2023 county boundaries. The full method is on the national page.

Sources
  1. USGS, Consolidated Prospect- and Mine-Related Features from 7.5- and 15-Minute Topographic Quadrangle Maps of the United States (USMIN)
    597,612 point and area features digitized from about 106,350 historical topographic maps published 1886–2006; public domain (CC0). A feature is a map symbol, not a field-verified site, and the map does not say whether it was still worked.
  2. USGS Fact Sheet 2025–3003, The Abandoned Mine Inventory of the United States
    States that as of 2025 there is no comprehensive national inventory of abandoned mine features, and that the detailed national database now being built will not be published.
  3. OSMRE, Abandoned Mine Land Inventory System (e-AMLIS), public Problems layer
    One row per abandoned mine land problem in a problem area, with its type, funding program and reclamation status; mostly coal mined before the 1977 Surface Mining Control and Reclamation Act. Coordinates are the problem area's.
  4. MSHA, Mines dataset (Mine Data Retrieval System)
    Every mine registered with MSHA since the 1970s; a mine reads Abandoned or Abandoned and Sealed when its operator reported that status. Refreshed weekly.
  5. US Census Bureau, 2023 cartographic county boundaries (1:500,000)
    Each feature's county is assigned by its coordinates against these boundaries, not copied from the source file.
  6. GAO-20-238, Abandoned Hardrock Mines (March 2020)
    Federal agencies had identified at least 140,000 abandoned hardrock mine features on federal land and estimated more than 390,000 more not yet captured in their databases.
  7. Abandoned Hardrock Mine Reclamation (AHMR) Program, US Department of the Interior
    The program the USGS inventory is compiled for. Its appropriations and the 674,000 field-confirmed feature count on this page were provided by the program manager, Office of Environmental Policy and Compliance, and are cited with permission (2026-09-08).
  8. IMCC-NAAMLP Hardrock AML Report
    Page 48 carries the two figures this page leans on: USGS estimates 633,181 of the 725,690 mine features it recorded from historic topographic maps, 87 percent, are hardrock; and state and federal agencies have submitted more than 724,000 AML features to the national database being built, already more than the historic maps hold. Year-by-year AHMR funding is on page 35.