{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "", "description": "Surveyed elevation PointsMonument is typically a standard City of Gresham Control Monument, being a 2 inch bronze disk with raised datum point (Berntsen Model CD2LB), Stamped \u201cCity of Gresham Control Do Not Disturb\u201d.Vertical: NGVD29 US Survey Feet*May 2013- updateGPS receivers are TOPCON HIPER+, static L1 L2Vector reduction performed by TOPCON Tools Software, v 8Least Squares adjustment performed by STAR*NET Software, v 7.1Each control point was occupied for a minimum of one hour, on each of two different days. The values established on the points were constrained to a minimum of three City of Gresham primary control points.", "summary": "", "title": "City of Gresham Control Points", "tags": [], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 0, "maxScale": 0, "spatialReference": "", "accessInformation": "", "licenseInfo": "" }