## GeMS validation of OAKLA2025.1.gdb

File written by GeMS_ValidateDatabase.py, version of 02/19/2025
Wed Dec 31 21:39:58 2025
Runtime parameters
Database path: \MD_2022_Oakland2025.1_1-2-submittal\MD_2022_Oakland2025.1_1-2\MD_2022_Oakland2025.1_1-2-database\OAKLA2025.1.gdb
Output directory: \MD_2022_Oakland2025.1_1-2-submittal
Metadata file: None
Check embedded metadata: False
Skip topology check: False
Refresh GeoMaterialDict: False
Delete extra rows in Glossary and DataSources: False
Compact GDB: True
This database is LEVEL 3 COMPLIANT.
Check Metadata option was skipped. Be sure to have prepared valid metadata and check this option to produce a complete report.
This file should be accompanied by Oakland.gdb-ValidationErrors.html and a metadata summary from mp in the same directory.
If this database will be submitted to the NGMDB, it also needs to be accompanied by a reviewed Geologic Names report that includes identification of any suggested modifications to Geolex. Use the Geologic Names Check tool to generate that report or provide other documentation of a review.
Back to Top

### Contents

Compliance Criteria
Warnings
Content not specified in GeMS schema
Occurrence of MapUnits in DMU, feature datasets, or geopackage tables
Contents of Nonspatial Tables
DataSources
DescriptionOfMapUnits
Glossary
Database Inventory

### Compliance Criteria

#### LEVEL 1

Criteria for a LEVEL 1 GeMS database are:

- No overlaps or internal gaps in map-unit polygon layer
- Contacts and faults in single feature class
- Map-unit polygon boundaries are covered by contacts and faults lines

Databases with a variety of schema may meet these criteria. This script cannot confirm LEVEL 1 compliance.

#### LEVEL 2--MINIMALLY COMPLIANT

A LEVEL 2 GeMS database is accompanied by a peer-reviewed Geologic Names report, including identification of suggested modifications to Geolex, and meets the following criteria:

2.1 Has required elements: nonspatial tables DataSources, DescriptionOfMapUnits, GeoMaterialDict; feature dataset GeologicMap with feature classes ContactsAndFaults and MapUnitPolys | PASS
2.2 Required fields within required elements are present and correctly defined | PASS
2.3 All MapUnitPolys and ContactsAndFaults based feature classes obey Level 2 topology rules: no internal gaps or overlaps in MapUnitPolys, boundaries of MapUnitPolys are covered by ContactsAndFaults | PASS
2.4 All map units in MapUnitPolys have entries in DescriptionOfMapUnits table | PASS
2.5 No duplicate MapUnit values in DescriptionOfMapUnit table | PASS
2.6 Certain field values within required elements have entries in Glossary table | PASS
2.7 No duplicate Term values in Glossary table | PASS
2.8 All xxxSourceID values in required elements have entries in DataSources table | PASS
2.9 No duplicate DataSources_ID values in DataSources table | PASS

#### LEVEL 3--FULLY COMPLIANT

A LEVEL 3 GeMS database meets these additional criteria:

3.1 Table and field definitions beyond Level 2 conform to GeMS schema | PASS
3.2 All MapUnitPolys and ContactsAndFaults based feature classes obey Level 3 topology rules: No ContactsAndFaults overlaps, self-overlaps, or self-intersections. | PASS
3.3 No missing required values | PASS
3.4 No missing terms in Glossary | PASS
3.5 No unnecessary terms in Glossary | PASS
3.6 No missing sources in DataSources | PASS
3.7 No unnecessary sources in DataSources | PASS
3.8 No map units without entries in DescriptionOfMapUnits | PASS
3.9 No unnecessary map units in DescriptionOfMapUnits | PASS
3.10 HierarchyKey values in DescriptionOfMapUnits are unique and well formed | PASS
3.11 All values of GeoMaterial are defined in GeoMaterialDict. GeoMaterialDict is as specified in the GeMS standard | PASS
3.12 No duplicate _ID values | PASS
3.13 No zero-length, whitespace-only, or bad null values | PASS

### Warnings

There are 272 warnings

### Content not specified in GeMS schema

Some of the extensions to the GeMS schema identified here may be necessary to capture geologic content and are entirely appropriate. Please document these extensions in metadata for the database, any accompanying README file, and (if applicable) any transmittal letter that accompanies the dataset. Other extensions may be intermediate datasets, fields, or files that should be deleted before distribution of the database.

#### Fields

Stations, ObservedMapUnit_Lith

#### Tables

### Occurrence of MapUnit in DMU, feature datasets, or geopackage tables

MapUnit | DescriptionOfMapUnits | GeologicMap
--- | --- | ---
Dfp | X | X
Mg | X | X
Qal | X | X
Dh | X | X
Df | X | X
Pcg | X | X
Ds | X | X
Pcc | X | X
Pp | X | X
Mmc | X | X
Qcl | X | X
Qps | X | X
Pa | X | X
MDr | X | X
Mp | X | X

### Contents of Nonspatial Tables

#### DataSources

OBJECTID | Source | Notes | URL | DataSources_ID
--- | --- | --- | --- | ---
7 | Neuendorf et al., eds., 2011 | modified from Neuendorf, K.K.E., Mehl Jr., J.P., and Jackson, J.A., eds. 2011. Glossary of Geology (Fifth Edition, Revised). Alexandria, VA. American Geological Institute. 783 p. | https://www.americangeosciences.org/pubs/glossary | AGI_2011
11 | Baker-Wibberly and Associates, Inc., 1977 | Baker-Wibberly and Associates, Inc., 1977. Underground Mine Drainage Control Snowy Creek-Laurel Run, West Virginia - Feasibility Study, USEPA Report EPA-600/2-77-114, June, 142 p. | https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101PZYH.PDF | BWA_1977
6 | FGDC, 2006 | Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates. | https://ngmdb.usgs.gov/fgdc_gds/geolsymstd.php | FGDC-STD-013-2006
16 | Frostburg State University, 1933 | Youghogheny [sic] River with locations of mines & sampling stations, 1933-1944, Frostburg State University Archives Map rut274, scale 1:62,500. | None | FrostburgSU_rut274_1933
5 | definitions copied from GeMS, 2020 | U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema)—A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p., https://doi.org//10.3133/tm11B10. | https://pubs.usgs.gov/publication/tm11B10 | GeMS_2020
17 | Maryland State, MD iMAP | Maryland State, MD iMAP Data Catalog (DoIT), Maryland Physical Boundaries - County Boundaries (Detailed), publ. 2016-02, updated 2019-09, accessed 2024-09. | https://geodata.md.gov/imap/rest/services/Boundaries/MD_PhysicalBoundaries/FeatureServer/0 | IMAP_PB_CBD_2016
13 | Brezinski, D.K., 2019 | Brezinski, D.K., 2019. Geologic map of the Deer Park Quadrangle, Garrett County, Maryland. Maryland Geological Survey Open-File Geologic Map, scale 1:24,000. | http://www.mgs.md.gov/publications/maps.html | MGS_DEER_PARK2019.OF.2
3 | Brezinski, D.K., field observations | Brezinski, D.K., field data collection and interpretations | None | MGS_DKB
15 | Amsden, T.W., 1953 | Amsden, T.W., 1953, Geologic Map of Garrett County: Baltimore, Md., Department of Geology, Mines and Water Resources, 1 sheet, scale 1:62,500. | http://www.mgs.md.gov/maps/GarrettCo_Geo_1953HiRes.pdf | MGS_GA1953
1 | Brezinski and Kavage Adams, 2025 | this report | http://www.mgs.md.gov/publications/maps.html | MGS_OAKLA2025.1
2 | Kavage Adams, R., field observations | Kavage Adams, R., field data collection and interpretations | None | MGS_RKA
9 | Swartz, C.K., 1922 | Swartz, C.K., 1922. Distribution and stratigraphy of the coal measures of Maryland; Correlation of the coal measures of Maryland; The coal basins of Maryland. Maryland Geological Survey, Volume 11, p. 35-126. | http://www.mgs.md.gov/publications/reports.html | MGS_v11_35
4 | Vincett III, W.K., field observations | Vincett III, W.K., field data collection and interpretations | None | MGS_WKV
10 | Flint, N.K., 1965 | Flint, N.K., 1965, Geology and mineral resources of southern Somerset County, Pennsylvania: Pennsylvania Geological Survey County Report, 4th series, no. 56A, 267 p. | https://maps.dcnr.pa.gov/publications/Default.aspx?id=60 | PAGS_CR_SO1965
14 | Dennison, J.M., 1970 | Dennison, J.M., 1970, Stratigraphic divisions of Upper Devonian Greenland Gap Group ("Chemung Formation") along Allegheny Front in West Virginia, Maryland, and Highland County, Virginia: Southeastern Geology, v. 12, no. 1, p. 53-82. | https://ngmdb.usgs.gov/Prodesc/proddesc_89100.htm | SEGEO_12.1.54
12 | Stose, G.W., and Swartz, C.K., 1912 | Stose, G.W., and Swartz, C.K., 1912, Description of the Pawpaw and Hancock quadrangles [Maryland-West Virginia-Pennsylvania]: U.S. Geological Survey Geologic Atlas of the United States Folio, Pawpaw-Hancock folio, no. 179, 24 p. | https://pubs.usgs.gov/publication/gf179 | USGS_GEOATL_1912_179

#### DescriptionOfMapUnits

OBJECTID | MapUnit | Name | FullName | Age | Description | HierarchyKey | ParagraphStyle | Label | Symbol | AreaFillRGB | AreaFillPatternDescription | DescriptionSourceID | GeoMaterial | GeoMaterialConfidence | DescriptionOfMapUnits_ID
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
1 | Qal | Alluvium | Alluvium | Quaternary | Pebbles, cobbles and boulders in a sandy matrix. Clasts weather yellowish orange and orange-brown. These deposits are present along both modern and ancient streams and may have a thick humic component near the top. Finer alluvium such as sand, silt and gravel underlies the stream channel where it is lower gradient, while steeper stream reaches are frequently floored by bedrock or locally derived cobbles and boulders. The thickness of alluvium varies from a thin veneer to more than 30 feet. These thicker accumulations tend to be concentrated where colluvium at the edge of valleys overlaps the alluvium. | 01-01 | DMU Unit 1 | Qal | 40 | 255,255,179 | None | MGS_OAKLA2025.1 | Alluvial sediment | High | DMU001
2 | Qps | Peatland and swamp deposits | Peatland and swamp deposits | Quaternary | Unconsolidated, light to dark gray, organic-rich, sandy clay to fibrous peat. These materials accumulated in boggy, low-lying, poorly drained areas, and many are remnants of late Pleistocene glades or lakes. These histic sediments are water-logged during part or most of the year and are poor agricultural lands. Thickness ranges from less than three feet to nearly 10 feet. | 01-02 | DMU Unit 1 | Qps | 120 | 235,255,222 | None | MGS_OAKLA2025.1 | Peat and muck | High | DMU002
3 | Qcl | Colluvium/Landslide | Colluvium/Landslide | Quaternary | Unconsolidated and unsorted boulders and cobbles present on steep slopes, or at the base of steep slopes, below outcrops of sandstone units. These deposits are largely the result of frost wedging or mass movement (i.e., landslide). Topographically, these accumulations exhibit an irregular upper surface, thin upslope and rarely have soil cover. Thickness ranges from several feet on steep slopes to more than 50 feet. | 01-03 | DMU Unit 1 | Qcl | 62 | 255,222,128 | None | MGS_OAKLA2025.1 | Colluvium and other widespread mass-movement sediment | High | DMU003
4 | None | Conemaugh Group | Conemaugh Group | None | Interbedded sandstone, shale, siltstone and nonmarine limestone. The aggregate thickness of the Conemaugh Group is as much as 800 feet in the Oakland quadrangle (Swartz, 1922). The Conemaugh Group is divided into the Glenshaw and Casselman Formations as named by Flint (1965). | 02 | DMU-Heading1 | None | None | None | None | MGS_OAKLA2025.1|MGS_v11_35|PAGS_CR_SO1965 | None | None | DMU004
5 | Pcc | Casselman Formation | Conemaugh Group, Casselman Formation | Pennsylvanian | Interbedded, tan, medium- to coarse-grained, locally conglomeratic, cross-bedded sandstone, gray to reddish gray mudstone, medium gray, silty shale, siltstone and light-gray to grayish brown, buff-weathering, non-marine limestone. The base of the Casselman Formation is considered the top of the Ames marine horizon. Less than 100 feet of the Casselman Formation are preserved in the Oakland Quadrangle. | 02-01 | DMU Unit 1 | *cc | 312 | 204,222,235 | None | MGS_OAKLA2025.1 | Sandstone and mudstone | High | DMU005
6 | Pcg | Glenshaw Formation | Conemaugh Group, Glenshaw Formation | Pennsylvanian | Gray, tan-weathering, micaceous, medium- to coarse-grained, cross-bedded sandstone containing abundant coaly plant fragments; interbedded with gray, reddish gray, and locally reddish brown, silty shale, siltstone, light gray, bioturbated, non-marine limestone, and brittle, dark gray, fossiliferous, marine shale. The base of the Glenshaw Formation is placed at the top of the Upper Freeport coal bed. Coal beds locally mined from the Glenshaw Formation include the Brush Creek (bc) and Lower Bakerstown (lb). The Glenshaw Formation is approximately 350 feet thick. | 02-02 | DMU Unit 1 | *cg | 421 | 179,235,222 | None | MGS_OAKLA2025.1 | Sandstone and mudstone | High | DMU006
7 | Pa | Allegheny Formation | Allegheny Formation | Pennsylvanian | Interbedded, medium to dark gray shale and siltstone, and tan to light gray, coarse-grained, cross-bedded sandstone, with thin, light-gray claystones. The top of the formation is at the top of the Upper Freeport (uf) coal bed, and the base of the formation is the top of the white, massive, conglomeratic Homewood Member of the underlying Pottsville Formation. The Lower (lk) and Upper Kittanning (uk) coal beds are locally mined and mapped in the quadrangle based on previous coal bed investigations (Baker-Wibberly and Associates, Inc., 1977). The Allegheny Formation is approximately 250 to 300 feet thick. | 03 | DMU Unit 1 | *a | 521 | 153,235,222 | None | MGS_OAKLA2025.1|BWA_1977 | Mostly sandstone | High | DMU007
8 | Pp | Pottsville Formation | Pottsville Formation | Pennsylvanian | Dominantly tan to light grayish brown, medium- to coarse-grained, cross-bedded sandstone and conglomeratic sandstone with abundant coaly plant fragments and thin intervals of dark gray, coaly shale, siltstone, or coal beds. The massive, pebbly to granular, light gray, highly cross-bedded Homewood Member constitutes a resistant, mappable sandstone layer at the top of the formation whose top demarcates the top of the formation. Total thickness for the unit is 200 to 250 feet. | 04 | DMU Unit 1 | *p | 733 | 102,204,204 | None | MGS_OAKLA2025.1 | Mostly sandstone | High | DMU008
9 | Mmc | Mauch Chunk Formation | Mauch Chunk Formation | Mississippian | Interbedded, reddish brown shale, variegated mudstone and siltstone, and reddish brown to greenish gray, medium-grained, micaceous sandstone. Sandstone intervals are lenticular, cross-bedded, exhibit sharp bases, and fine upsection. Several thin, greenish gray, marine calcareous shale to argillaceous limestone units are present near the base of the formation. The Mauch Chunk Formation is approximated at 400 feet in thickness in the Oakland Quadrangle. | 05 | DMU Unit 1 | Mmc | 603 | 128,204,255 | None | MGS_OAKLA2025.1 | Sandstone and mudstone | High | DMU009
10 | Mg | Greenbrier Formation | Greenbrier Formation | Mississippian | Interbedded, gray to reddish brown sandstone, fossiliferous and variegated shale, and fossiliferous limestone. The light gray, cross-bedded, sandy limestone (Loyalhanna Member) is at the base and is overlain by interbedded, reddish, fossiliferous mudstone, white to tan and reddish brown, fine-grained sandstone, and reddish brown siltstone and variegated shale (Savage Dam Member). The Savage Dam Member is overlain by thin- to medium-bedded, light to medium gray, argillaceous, fossiliferous limestone at the top of the formation (Wymps Gap Member). The Greenbrier Formation is 150 to 200 feet thick. | 06 | DMU Unit 1 | Mg | 501 | 153,235,255 | None | MGS_OAKLA2025.1 | Limestone | High | DMU010
11 | Mp | Purslane Formation | Purslane Formation | Mississippian | Tan to light gray, coarse-grained sandstone to conglomerate. Thick-bedded, pebbly conglomerate occurs near the base and at the top of the formation. Thin beds of gray shale and coaly shale are locally interbedded with the sandstone intervals. The Purslane Formation is 250 to 300 feet thick in southern Garrett County. | 07 | DMU Unit 1 | Mp | 301 | 204,235,255 | None | MGS_OAKLA2025.1 | Mostly sandstone | High | DMU011
12 | MDr | Rockwell Formation | Rockwell Formation | Devonian-Mississippian | Interbedded, greenish gray, tan-weathering, argillaceous, bioturbated sandstone, and reddish gray to gray, coaly siltstone and shale. The greenish gray bioturbated sandstones at the base of the formation (Oswayo Member) are locally interbedded with the reddish strata of the upper Hampshire Formation. These basal marine strata are overlain by light gray to tan, thin- to medium- bedded, cross-bedded, lenticular sandstone, and rooted, gray mudstone. The top of the formation consists of well-sorted, burrowed, locally fossiliferous, buff sandstone of the Riddlesburg Member. The Rockwell Formation is between 100 and 200 feet thick in the Oakland Quadrangle. | 08 | DMU Unit 1 | MDr | 614 | 128,179,235 | None | MGS_OAKLA2025.1 | Sandstone and mudstone | High | DMU012
13 | Dh | Hampshire Formation | Hampshire Formation | Devonian | Interbedded, reddish brown to reddish gray, and brownish red, locally greenish gray, cross-bedded, upward-fining, lenticular sandstone; reddish brown micaceous siltstone, shale, and red-brown rooted claystone. The Hampshire Formation is approximately 1,500 feet thick in the Oakland Quadrangle. | 09 | DMU Unit 1 | Dh | 414 | 179,179,235 | None | MGS_OAKLA2025.1 | Sandstone and mudstone | High | DMU013
14 | Df | Foreknobs Formation | Foreknobs Formation | Devonian | Interbedded, olive gray, tan-weathering, medium- to coarse-grained, cross-bedded, bioturbated sandstone; greenish gray to dusky red, fossiliferous shale and siltstone. Top of the formation is mapped at the top of the medium- to thick-bedded, cross-bedded, light gray to white (>30 feet) sandstone considered equivalent to the Pound Sandstone Member of the Valley and Ridge Province (Dennison, 1970). The middle part of the formation is characterized by intervals of thinly interbedded greenish gray, silty shale and bioturbated sandstone. The lower contact of the formation is mapped approximately 1,600 feet below the top of the formation (Flint, 1965) at the base of a conglomeratic interval correlated with the Park Head Sandstone of eastern Allegany County (Stose and Swartz, 1912; Brezinski, 2019). The Foreknobs Formation is 1,600 feet thick in Garrett County. | 10 | DMU Unit 1 | Df | 303 | 204,204,255 | None | MGS_OAKLA2025.1|PAGS_CR_SO1965|USGS_GEOATL_1912_179|MGS_DEER_PARK2019.OF.2|SEGEO_12.1.54 | Sandstone and mudstone | High | DMU014
15 | Dfp | Foreknobs Formation, Parkhead Sandstone | Foreknobs Formation, Parkhead Sandstone | Devonian | Interbedded greenish gray, silty shale and thick-bedded, light gray, coarse-grained sandstone and quartz-pebble conglomerates. At least two separate conglomerate layers are identified and where possible, mapped. Thickness of the member is 50 to 75 feet. | 10-01 | DMU Unit 2 | Dfp | 533 | 153,204,204 | None | MGS_OAKLA2025.1 | Sandstone and mudstone | High | DMU015
16 | Ds | Scherr Formation | Scherr Formation | Devonian | Interbedded gray to greenish gray, fissile shale, gray, planar-bedded siltstones, and light gray, tan-weathering, thin-bedded, fine-grained, bioturbated sandstone. The Sherr Formation of the Deer Park Anticline is considered correlative with the Brallier Formation of the Valley and Ridge Physiographic Province (Dennison, 1970). Thickness of the exposed part of this formation in the Oakland Quadrangle may be up to 1,000 feet. | 11 | DMU Unit 1 | Ds | 604 | 128,179,255 | None | MGS_OAKLA2025.1|SEGEO_12.1.54 | Mostly mudstone | High | DMU016

#### Glossary

OBJECTID | Term | Definition | DefinitionSourceID | Glossary_ID
--- | --- | --- | --- | ---
10 | bedding | Formed, arranged, or deposited in layers or beds, or made up of or occurring in the form of beds; esp. said of a layered sedimentary rock, deposit, or formation. The term has also been applied to nonsedimentary material that exhibits depositional layering, such as the "bedded deposits" of volcanic tuff alternating with lava in the mantle of a stratovolcano. | AGI_2011 | GLO009
1 | certain | Identity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation. | FGDC-STD-013-2006 | GLO001
13 | coal bed | An outcrop or trace of a coal bed or stratum. | MGS_OAKLA2025.1 | GLO012
9 | contact | A plane or irregular surface between two different types or ages of rock, sediment or other geologic and stratigraphic units. | AGI_2011 | GLO008
8 | cross section line | A plane or polyline along which a diagram is drawn showing the transected subsurface and topographic features and geology; specifically a vertical section drawn at right angles to the longer axis of a geologic feature. | AGI_2011 | GLO007
5 | DMU-Heading1 | Header, bolded text, all capitals no indent, 11pt Times New Roman font. This format is used for groups or headings of formations (with members or subunits) where no group is present. | MGS_OAKLA2025.1 | GLO005
3 | DMU Unit 1 | Formation style, bolded title, 11pt Times New Roman font. This format is used for largest unit descriptions where units are mapped at the surface, and may or may not contain subunits. | MGS_OAKLA2025.1 | GLO003
4 | DMU Unit 2 | Formation or member style, bolded title, 11pt Times New Roman font. This format is used for visible map unit polygons for geologic Formations, Members, or other major informal geologic units | MGS_OAKLA2025.1 | GLO004
11 | fault | A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. | AGI_2011 | GLO010
30 | fold axis | A line which, when moved parallel to itself, traces out a folded surface. It applies only in the case of cylindrical folds. | MGS_OAKLA2025.1 | GLO015
2 | High | The selected term in the GeoMaterial field (and its definition) adequately characterizes the overall lithologic nature of rocks and (or) sediments in the map unit. | GeMS_2020 | GLO002
12 | joint | A planar fracture, crack, or parting in a rock, without shear displacement. | AGI_2011 | GLO011
7 | neatline | Map Outline | MGS_OAKLA2025.1 | GLO006
14 | recreational GPS | Data collected using Apple iPad using GIS software such as ESRI Field Maps or IGIS with settings of approximately 30 ft point accuracy. | MGS_OAKLA2025.1 | GLO013
29 | state boundary | The boundary between states as determined by the Maryland Physical Boundaries - County Boundaries (Detailed) feature hosted on MD iMap, reprojected into NAD 1983 (2011) StatePlane Maryland FIPS 1900 (US Feet) [WKID 6488]. | MGS_OAKLA2025.1 | GLO014

### Database Inventory

This summary of database content is provided as a convenience to GIS analysts, reviewers, and others. It is not part of the GeMS compliance criteria.
DataSources, nonspatial table, 16 rows
DescriptionOfMapUnits, nonspatial table, 16 rows
GeoMaterialDict, nonspatial table, 101 rows
Glossary, nonspatial table, 16 rows
GeologicMap, feature dataset
Stations, simple point feature class, 480 rows
ContactsAndFaults, simple polyline feature class, 199 rows
OrientationPoints, simple point feature class, 176 rows
GeologicLines, simple polyline feature class, 74 rows
MapUnitOverlayPolys, simple polygon feature class, 40 rows
MapUnitPolys, simple polygon feature class, 45 rows
CartographicLines, simple polyline feature class, 1 rows