Property Web Map Buffer Operations for Boulder County, Colorado. The offices of Boulder County, Colorado, maintained their own in-house web mapping site that jointly shared information accessed by the Assessor’s Office, Land Use, Public Health, and Parks & Open Space offices. The county government in this thriving, highly populated area had historically provided public mapping access over the Internet with their E-Mapping program, built and maintained by Boulder County IT staff using Esri’s ArcGIS internet mapping software. With a staff savvy in GIS, their in-house team sufficiently met the mapping and assessment needs of the county for the past several years.