Collection of this dataset is an ongoing project to digitize and attribute land parcels as described by various documents filed with respective County Clerks and Assessors offices, including plats, surveys and/or deeds. The different fields reflect the MRGCD information, such as, the property code, Sequence No, Revision Number, Previous Revision, Book and Page, as well as, the County information for UPC, file date and book and page. MRGCD organizes plats and re-plats with Sequence Nos (#9-99999) which is simply the county no (1-Sandoval County, 2-Bernalillo County, 3-Valencia County and 4-Socorro County) and a sequential number, ie, #4-00105.