"Geographic Information System".
"Global Positioning System".
Degree of slope or steepness of a geographic feature.
(1) Water that infiltrates the ground surface and accumulates as underground pools in porous rock or gravels.
(2) Water which has collected in soil over an impermeable base. The water may remain in place as a ground water reserve, or gradually evaporate, or seep away.
"Greater Vancouver Regional District".
(1) The geographic area of Greater Vancouver.
(2) The federation of municipalities which cooperate on the provision of services, such as water supply and sewer treatment. Includes: Lions Bay, West Vancouver, District of North Vancouver, City of North Vancouver, Belcarra, Anmore, Port Moody, Coquitlam, Port Coquitlam, Vancouver, Burnaby, New Westminster, Richmond, Delta, Surrey, White Rock, Township of Langley, City of Langley.