| Quadrangle name (County) |
Page number or reference |
| Madisonburg (Centre, Clinton) |
Map 350 *Augmented by Wood, C.
R. (1980), Summary groundwater resources of Centre County, Pennsylvania, Pennsylvania
Geological Survey, 4th ser., Water Resource Report 48, 60 p. |
| Mahaffey (Clearfield) |
Map 351 |
| Majorsville (Greene, Washington) |
Map 352 *Augmented by Stoner,
J. D., Williams, D. R., and Buckwalter, T. F., and others (1987), Water resources and the
effects of coal mining, Greene County, Pennsylvania, Pennsylvania Geological Survey, 4th
ser., Water Resource Report 63, 166 p. |
| Malvern (Chester) |
Map 353 |
| Mammoth (Westmoreland, Fayette) |
Map 354 *Augmented by McElroy, T.
A. (1988), Groundwater resources of Fayette County, Pennsylvania, Pennsylvania Geological
Survey, 4th ser., Water Resource Report 60, 57 p. |
| Manatawny (Berks) |
Map 355 |
| Manchester (York) |
Map 356 |
| Manheim (Lancaster, Lebanon) |
Map 357 *Augmented by Poth, C. W.
(1977), Summary ground-water resources of Lancaster County, Pennsylvania, Pennsylvania
Geological Survey, 4th ser., Water Resource Report 43, 80 p.
*Augmented by Royer, D. W. (1983), Summary groundwater resources of Lebanon County,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 55, 84 p.
*Augmented by Becher, A. E. (1991), Groundwater resources in and near the anthracite
basins of Schuylkill and adjacent counties, Pennsylvania, Pennsylvania Geological Survey,
4th ser., Water Resource Report 64, 59 p. |
| Mansfield (Tioga) |
Map 358 *Augmented by Williams,
J. H., Taylor, L. E., and Low, D. J. (1993), Surficial geologic map of major glaciated
valleys of Bradford, Tioga, and Potter Counties, Pennsylvania, showing locations of wells,
test holes, and data-collection sites, Pennsylvania Geological Survey, 4th ser., Water
Resource Report 68. |
| Marcus Hook (Delaware) |
Map 359 *Augmented by Balmer, W.
T. and Davis D. K. (1996), Ground water resources of Delaware County, Pennsylvania,
Pennsylvania Geological Survey, 4th ser., Water Resource Report 66, 67 p. |
| Marienville 15' |
Map 360, Map 361, Map 362, Map 363 |
| Marienville East (see
Marienville 15' NE)(Forest, Elk) |
Map 361 |
| Marienville West (see
Marienville 15' NW)(Forest, Clarion) |
Map 360 |
| Marion Center (Indiana) |
Map 364 |
| Markleton (Somerset) |
Flint (1965) |
| Mars (Butler, Allegheny) |
Wagner and others (1975) |
| Marshlands (Tioga, Potter) |
Map 365 *Augmented by Williams,
J. H., Taylor, L. E., and Low, D. J. (1993), Surficial geologic map of major glaciated
valleys of Bradford, Tioga, and Potter Counties, Pennsylvania, showing locations of wells,
test holes, and data-collection sites, Pennsylvania Geological Survey, 4th ser., Water
Resource Report 68. |
| Martingsburg (Blair, Bedford,
Huntingdon) |
Map 366 |
| Mason-Dixon (Franklin) |
Clark (1970); Root (1968) *Augmented by Becher, A. E. and
Taylor, L. E. (1982), Groundwater resources in the Cumberland and contiguous valleys of
Franklin County, Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource
Report 53, 67 p. |
| Masontown (Greene, Fayette) |
Map 367 *Augmented by Stoner, J.
D., Williams, D. R., and Buckwalter, T. F., and others (1987), Water resources and the
effects of coal mining, Greene County, Pennsylvania, Pennsylvania Geological Survey, 4th
ser., Water Resource Report 63, 166 p.
*Augmented by McElroy, T. A. (1988), Groundwater resources of Fayette County,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 60, 57 p. |
| Mather (Greene, Washington, Fayette) |
Kent (1969) *Augmented by Newport, T. G. (1973), Summary
ground-water resources of Washington County, Pennsylvania, Pennsylvania Geological Survey,
4th ser., Water Resource Report 38, 32 p.
*Augmented by Stoner, J. D., Williams, D. R., and Buckwalter, T. F., and others (1987),
Water resources and the effects of coal mining, Greene County, Pennsylvania, Pennsylvania
Geological Survey, 4th ser., Water Resource Report 63, 166 p.
*Augmented by McElroy, T. A. (1988), Groundwater resources of Fayette County,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 60, 57 p. |
| Mayburg (see Sheffield 15'
SW)(Forest) |
Map 510 |
| McAlveys Fort (Huntingdon, Centre,
Mifflin) |
Map 368 *Augmented by Wood, C.
R. (1980), Summary groundwater resources of Centre County, Pennsylvania, Pennsylvania
Geological Survey, 4th ser., Water Resource Report 48, 60 p. |
| McClure (Juniata, Snyder, Mifflin) |
Conlin and Hoskins (1962) Augmented by Johnston, H. E.
(1970), Ground-water resources of the Loysville and Mifflintown quadrangles in
south-central Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource
Report 27, 96 p. |
| McConnellsburg (Franklin, Fulton) |
Clark (1970); Pierce (1966) *Augmented by Becher, A. E. and
Taylor, L. E. (1982), Groundwater resources in the Cumberland and contiguous valleys of
Franklin County, Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource
Report 53, 67 p. |
| McCoysville (Juniata, Perry,
Mifflin) |
Map 369 *Augmented by Royer, D.
W. (1984), Summary groundwater resources of Perry County, Pennsylvania, Pennsylvania
Geological Survey, 4th ser., Water Resource Report 59, 70 p. |
| McGees Mills (Clearfield,
Jefferson, Indiana) |
Map 370 |
| McIntyre (Indiana, Armstrong) |
Map 371 |
| McKeesport (Allegheny, Westmoreland) |
Wagner and others (1975) |
| McSherrystown (Adams) |
Stose and Bascom (1919); Wood (1980) *Augmented by Taylor, L.
E. and Royer, D. W. (1981), Summary groundwater resources of Adams County, Pennsylvania,
Pennsylvania Geological Survey, 4th ser., Water Resource Report 52, 50 p. |
| McVeytown (Mifflin, Juniata) |
Map 372 |
| Meadow Grounds (Fulton) |
Map 373 |
| Meadville (Crawford) |
Schiner and Gallaher (1979) |
| Mechanicsburg (Cumberland, York) |
Root (1978) *Augmented by Becher, A. E. and Root, S. I.
(1981), Groundwater and geology of the Cumberland Valley, Cumberland County, Pennsylvania,
Pennsylvania Geological Survey, 4th ser., Water Resource Report 50, 95 p. |
| Media (Delaware, Chester) |
Map 374 *Augmented by Balmer, W. T.
and Davis D. K. (1996), Ground water resources of Delaware County, Pennsylvania,
Pennsylvania Geological Survey, 4th ser., Water Resource Report 66, 67 p. |
| Mench (Bedford, Fulton) |
Map 375 |
| Mercer (Mercer) |
Poth (1963) |
| Mercersburg (Franklin, Fulton) |
Map 376 *Augmented by Becher,
A. E. and Taylor, L. E. (1982), Groundwater resources in the Cumberland and contiguous
valleys of Franklin County, Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water
Resource Report 53, 67 p. |
| Meshoppen (Wyoming) |
Map 377 |
| Mexico (Juniata, Perry) |
Conlin and Hoskins (1962) Augmented by Johnston, H. E.
(1970), Ground-water resources of the Loysville and Mifflintown quadrangles in
south-central Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource
Report 27, 96 p.
*Augmented by Royer, D. W. (1984), Summary groundwater resources of Perry County,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 59, 70 p. |
| Meyersdale (Somerset) |
Map 378 |
| Middleburg (Snyder, Union) |
Map 379 |
| Middletown (Dauphin, Lancaster,
York) |
Map 380 *Augmented by Poth, C.
W. (1977), Summary ground-water resources of Lancaster County, Pennsylvania, Pennsylvania
Geological Survey, 4th ser., Water Resource Report 43, 80 p.
*Augmented by Becher, A. E. (1991), Groundwater resources in and near the anthracite
basins of Schuylkill and adjacent counties, Pennsylvania, Pennsylvania Geological Survey,
4th ser., Water Resource Report 64, 59 p. |
| Midland (Beaver) |
Wagner and others (1975) |
| Midway (Washington) |
Roen (1973) |
| Mifflinburg (Union) |
Map 381 |
| Mifflintown (Juniata, Mifflin) |
Conlin and Hoskins (1962) Augmented by Johnston, H. E.
(1970), Ground-water resources of the Loysville and Mifflintown quadrangles in
south-central Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource
Report 27, 96 p. |
| Mifflinville (Columbia) |
Inners (1981) *Augmented by Becher, A. E. (1991), Groundwater
resources in and near the anthracite basins of Schuylkill and adjacent counties,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 64, 59 p. |
| Milford (Pike) |
Map 382 Superceded by Sevon, W. D.,
Berg, T. M., Schultz, L. D., and Crowl, G. H. (1989), Geology and mineral resources of
Pike County, Pennsylvania, Pennsylvania Geological Survey, 4th ser., County Report 52, 141
p.
*Augmented by Davis, D. K. (1989), Groundwater resources of Pike County, Pennsylvania,
Pennsylvania Geological Survey, 4th ser., Water Resource Report 65, 63 p. |
| Milford Square (Bucks, Lehigh, Montgomery) |
Longwill and Wood (1965); Willard and others (1959)
*Augmented by Poth, C. W. (1972), Hydrology of the Martinsburg Formation in Lehigh and
Northampton Counties, Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water
Resource Report 30, 52 p.
*Augmented by Wood, C. R., Flippo, H. N., Jr., Lescinsky, J. B., and Barker, J. L. (1972),
Water resources of Lehigh County, Pennsylvania, Pennsylvania Geological Survey, 4th ser.,
Water Resource Report 31, 263 p. |
| Millersburg (Dauphin, Perry, Northumberland, Juniata) |
Hoskins (1976) *Augmented by Royer, D. W. (1984), Summary
groundwater resources of Perry County, Pennsylvania, Pennsylvania Geological Survey, 4th
ser., Water Resource Report 59, 70 p.
*Augmented by Becher, A. E. (1991), Groundwater resources in and near the anthracite
basins of Schuylkill and adjacent counties, Pennsylvania, Pennsylvania Geological Survey,
4th ser., Water Resource Report 64, 59 p. |
| Millers Station (see Union City
15' SW) (Crawford, Erie) |
Map 585 *Augmented by
Richards, D. B., McCoy, H. J., and Gallaher, J. T. (1987), Groundwater resources of Erie
County, Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 62,
101 p. |
| Millerstown (Perry, Juniata) |
Faill and Wells (1974) |
| Millerton (Tioga, Bradford) |
Map 383 *Augmented by Williams,
J. H., Taylor, L. E., and Low, D. J. (1993), Surficial geologic map of major glaciated
valleys of Bradford, Tioga, and Potter Counties, Pennsylvania, showing locations of wells,
test holes, and data-collection sites, Pennsylvania Geological Survey, 4th ser., Water
Resource Report 68. |
| Mill Hall (Clinton) |
Map 384 |
| Millheim (Centre, Clinton) |
Map 385 *Augmented by Wood, C. R.
(1980), Summary groundwater resources of Centre County, Pennsylvania, Pennsylvania
Geological Survey, 4th ser., Water Resource Report 48, 60 p. |
| Mill Run (Fayette, Somerset) |
Map 386 *Augmented by McElroy, T.
A. (1988), Groundwater resources of Fayette County, Pennsylvania, Pennsylvania Geological
Survey, 4th ser., Water Resource Report 60, 57 p. |
| Millville (Columbia, Montour) |
Map 387 Superceded by Way, J. H.
(1993), Geology and mineral resources of the Washingtonville and Millville quadrangles,
Montour, Columbia, and Northumberland Counties, Pennsylvania, Pennsylvania Geological
Survey, 4th ser., Atlas 154 cd, 51 p.
*Augmented by Becher, A. E. (1991), Groundwater resources in and near the anthracite
basins of Schuylkill and adjacent counties, Pennsylvania, Pennsylvania Geological Survey,
4th ser., Water Resource Report 64, 59 p. |
| Milton (Northumberland, Union, Montour) |
Map 388 Augmented by Inners, J. D.
(in press), Bedrock and surficial geologic maps and mineral production map of the
Allenwood and Milton quadrangles, Union and Northumberland Counties, Pennsylvania,
Pennsylvania Geological Survey, 4th ser., Atlas 144cd.
*Augmented by Becher, A. E. (1991), Groundwater resources in and near the anthracite
basins of Schuylkill and adjacent counties, Pennsylvania, Pennsylvania Geological Survey,
4th ser., Water Resource Report 64, 59 p. |
| Minersville (Schuylkill) |
Wood and others (1968) |
| Mingoville (Centre) |
Map 389 *Augmented by Wood, C.
R. (1980), Summary groundwater resources of Centre County, Pennsylvania, Pennsylvania
Geological Survey, 4th ser., Water Resource Report 48, 60 p. |
| Monongahela (Washington, Allegheny, Westmoreland) |
Roen and others (1968) *Augmented by Schweinfurth, S. P.,
Roen, J. B., and Kent, B. H. (1971), Geology and land use in eastern Washington County,
Pennsylvania, California and Monongahela 71/2-minute quadrangles, Pennsylvania Geological
Survey, 4th ser., General Geology Report 56A (see G 56 for text).
*Augmented by Gallaher, J. T. (1973), Summary ground-water resources of Allegheny County,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 35, 71 p.
*Augmented by Newport, T. G. (1973), Summary ground-water resoruces of Westmoreland
County, Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 37,
49 p.
*Augmented by Newport, T. G. (1973), Summary ground-water resources of Washington County,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 38, 32 p. |
| Monroeton (Bradford) |
Map 390 |
| Montoursville North (Lycoming) |
Wells and Bucek (1980) *Augmented by Lloyd, O. B., Jr., and
Carswell, L. D. (1981), Groundwater resources of the Williamsport region, Lycoming County,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 51, 69 p. |
| Montoursville South (Lycoming, Union, Northumberland) |
Faill (1979) *Augmented by Lloyd, O. B., Jr., and Carswell,
L. D. (1981), Groundwater resources of the Williamsport region, Lycoming County,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 51, 69 p.
*Augmented by Becher, A. E. (1991), Groundwater resources in and near the anthracite
basins of Schuylkill and adjacent counties, Pennsylvania, Pennsylvania Geological Survey,
4th ser., Water Resource Report 64, 59 p. |
| Montrose East (Susquehanna) |
Map 391 |
| Montrose West (Susquehanna) |
Map 392 |
| Morgantown (Berks, Lancaster,
Chester) |
Map 393 |
| Morgantown North (Greene,
Fayette) |
Map 394 *Augmented by
Stoner, J. D., Williams, D. R., and Buckwalter, T. F., and others (1987), Water resources
and the effects of coal mining, Greene County, Pennsylvania, Pennsylvania Geological
Survey, 4th ser., Water Resource Report 63, 166 p.
*Augmented by McElroy, T. A. (1988), Groundwater resources of Fayette County,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 60, 57 p. |
| Morris (Tioga, Lycoming) |
Map 395 *Augmented by Williams, J.
H., Taylor, L. E., and Low, D. J. (1993), Surficial geologic map of major glaciated
valleys of Bradford, Tioga, and Potter Counties, Pennsylvania, showing locations of wells,
test holes, and data-collection sites, Pennsylvania Geological Survey, 4th ser., Water
Resource Report 68. |
| Moscow (Lackawanna) |
Map 396 |
| Mosgrove (Armstrong) |
Map 397 |
| Mount Caramel (Northumberland, Columbia, Schuylkill) |
Arndt (1971b) *Augmented by Becher, A. E. (1991), Groundwater
resources in and near the anthracite basins of Schuylkill and adjacent counties,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 64, 59 p. |
| Mount Chestnut (Butler) |
Wagner and others (1975) |
| Mount Holly Springs
(Cumberland, Adams, York) |
Map 398 *Augmented by
Becher, A. E. And Root, S. I. (1981), Groundwater and geology of the Cumberland Valley,
Cumberland County, Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource
Report 50, 95 p.
*Augmented by Taylor, L. E. and Royer, D. W. (1981), Summary groundwater resources of
Adams County, Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource
Report 52, 50 p. |
| Mount Jewett 15' |
Map 399, Map 400, Map 401, Map 402 |
| Mount Jewett (see Mt Jewett 15'
NW) (McKean, Elk) |
Map 399 |
| Mount Pleasant (Westmoreland,
Fayette) |
Map 403 *Augmented by
McElroy, T. A. (1988), Groundwater resources of Fayette County, Pennsylvania, Pennsylvania
Geological Survey, 4th ser., Water Resource Report 60, 57 p. |
| Mount Pocono (Monroe) |
Berg and others (1977) *Augmented by Carswell, L. D. and
Lloyd, O. B., Jr. (1979), Geology and groundwater resources of Monroe County,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 47, 61 p. |
| Mount Union (Huntingdon, Mifflin) |
Map 404 |
| Muncy (Lycoming, Northumberland) |
Faill (1979) *Augmented by Becher, A. E. (1991), Groundwater
resources in and near the anthracite basins of Schuylkill and adjacent counties,
Pennsylvania, Pennsylvania Geological Survey, 4th ser., Water Resource Report 64, 59 p. |
| Munderf (Jefferson, Elk) |
Map 405 |
| Murdock (Somerset) |
Flint (1965) |
| Murrysville (Westmoreland, Allegheny) |
Wagner and others (1975) |
Revised: September 06, 2000
|
