MD iMAP: Maryland Archived Submerged Aquatic Vegetation 1992

This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The Chesapeake Bay SAV was mapped from 1:24 - 000 black and white aerial...本服务为马里兰州（Maryland）iMAP托管服务。更多信息请访问 http://imap.maryland.gov。切萨皮克湾（Chesapeake Bay）沉水水生植被（Submerged Aquatic Vegetation, SAV）的测绘工作基于1:24000比例尺的黑白航空影像……