For the purpose of the Travis and Williamson Counties Karst Invertebrates Recovery Plan, Karst Fauna Regions (KFRs) are geographic areas delineated based on potential environmental and biological barriers or restrictions that control the distribution of karst invertebrates.

Land Use 2010 is a parcel based, land use map representing land use conditions for the City of Austin and surrounding areas. Previous studies were made in 1990, 1995, 2000 and 2003. The 2010 study area included all of Travis County and parts of Hays, Williamson, Bastrop and Blanco Counties. Land use parcel geometry was based on the City of Austin's 2003 Land Use Study and City of Austin base map or county appraisal district GIS and CAD files. Historical land use data from previous studies, especially 2003, county tax appraisal district information, aerial photographs or other land-use related information was used to characterize the 2010 land uses. City of Austin staff, local planning or engineering consultants, researchers, students or area residents can use land use data for water resource research, planning, management, infrastructure and transportation planning, development, comprehensive or neighborhood planning and spatial analysis. Specifically the 2010 land use layer can be used to study land use change and development patterns and as an input to water quality, flood, erosion or transportation models. The following includes some, but not all data limitations: "Land use is current as of approximately September, 2010", "Parcels along the study area boundary may represent only a portion of the original", "Parcels adjacent to area lakes differ from those in the 2003 Land Use Study," "Land use polygons may differ from tax appraisal district parcels", "Corrections to the original 2010 Land Use Study will be shown in periodic updates", and "Methods used to characterize land use in the latest study differ from previous studies and may not be directly comparable." This product has been produced by the Communications and Technology Department for the sole purpose of geographic reference. No warranty is made by the City of Austin regarding specific accuracy or completeness.

These address data are updated, typically by request, to City of San Marcos Planning and Development Services on a daily to weekly basis. Updates occur as new parcel plats are recorded, as building footprints change, when new service equipment such as cell towers and meters is installed, to bring existing address points into compliance with CAPCOG 911-Addressing guidelines, and as needed for various other circumstances.The 911 addresses (denoted in the Address911 field as “Y”) follow the CAPCOG (Capital Area Council of Governments) Addressing Guidelines (10-28-09) available here: http://www.capcog.org/divisions/emergency-communications/911-technology/(last accessed March 30, 2017).Non-911 addresses (denoted in the Address911 field as “N”) are maintained for location finding, public infrastructure inventory, and for various other circumstances. Location finding address points includes all intersection, 100 block numbers, and mile markers.There are two types of new addresses, In-fill and Subdivisions. In-fill addressing occurs in already developed areas that experience change. The Planning and Development Services Planning Technician updates and maintains the infill addresses, often in coordination with the City of San Marcos Fire Marshal’s office. Planning and Development Services 911 Address Coordinator creates new subdivision addressing. This feature exists in DevServices.sde. Field Information:OBJECTID- System-generated unique identifier for each record within the feature classMAXIMOID- unique identifier tie for public services asset management software; field is auto populated by IT GIS scriptMAXIMOIDPFX- unique identifier with prefix indicating (ADDR) feature tie for public services asset management software; field is auto populated by IT GIS scriptSAN- Site Address Number, assigned based on CAPCOG guidelines; alias: ADDRESSPRD- Prefix Directional (N, S, E, W); alias: PREFIX DIRECTIONSTN- Street Name; alias: STREET NAME; domain: ST_TYPESTS- Street Suffix; alias: STREET TYPEUNIT_NUM- FULLADDR- all caps concatenation of PRD + STN + STS (field calculate with this expression: ucase ([SAN] &" "& [PRD]&" "& [STN]&" "& [STS])UNIT TYPE*- values include: APT, ACSRY, BLDG, CLBHSE, CONDO, DUP, STE- these values , ; domain: ServUnitTypeZIP CODE- Zipcode- currently all 78666 COUNTY- Hays, Caldwell, Comal, or GuadalupeADDINFO*- used to add information about address, such as Business or Complex name or address type SF (single-family), intersection, etc.; alias DESCRIPTIONADDRESS911- yes or no value distinguishes 911 addresses from non-911 addresses; domain: YORNPOINT_X- Calculated geometry for “X Coordinate of Point” in PCS: NAD 1983 StatePlane Texas South Central FIPS 4204 Feet using Decimal DegreesPOINT_Y- Calculated geometry for “X Coordinate of Point” in PCS: NAD 1983 StatePlane Texas South Central FIPS 4204 Feet using Decimal DegreesCREATEDBY- system generated value based on log in ID CREATEDDATE- system generated value in UTMMODIFIEDBY- system generated value based on log in IDMODIFIEDDATE- system generated value in UTMSHAPE System-generated geometry type of the featureADDRESS_TYPE*- used to add information about addressGlobalID-System-generated unique identifier for each record that is required in replicated geodatabases*Indicate field is not consistent. The feature is under audit and overhaul in 2017 and 2018. Project will encompass and establish specific, consistent descriptors, update and add domains, compare and correct, as needed, consistency with these features: AptSteNum, Condo, Apartment, MFHousing, Parcel, Building, Centerline and Street address ranges

The City of Austin Planning and Development Review Comprehensive Plan Division created the 2010 Land Use Study for the purposes of facilitating regional planning. A Land Use Study classifies land according to a coding system that reflects the primary modifications or improvements made to that land in order to accommodate housing, commerce, transportation, recreation, and other human activities. This GIS file stores the classifications for each land parcel, along with other GIS information regarding parcel size and location. The study is generally current to the main source for land use information - September 2010 appraisal data. However, in many cases the previous land uses remained unchanged from the last study, so the sources used for them remained the same. The study area encompasses the City of Austin’s Full, Limited Purpose, and Extra-territorial jurisdictions, which include much of Travis County, and portions of Blanco, Hays and Williamson Counties.