Soils of the - Agriculture and Agri-Food Canada

MISCELLANEOUS LAND TYPE S
Miscellaneous land types consist of naturally occuring or man-made components of the landscape but ar e
considered not to be "soil" as defined in this report . They, however, are mappable and seven different land types
are classified in the map area .
Anthropogenic (A) : The Anthropogenic land type consists of areas which are man-made or so severel y
man-modified that the original characteristics of the soil have been destroyed . About 310 ha are classified
as Anthropogenic land type, located mainly in the vicinity of Vancouver. In the map area, this land typ e
consists mainly of land fill materials including hog fuel, gravel, and sand dredgings . An anthropogenic soi l
variant employed in some map units is similar to this Anthropogenic land type except that land disturbance
is usually less severe and some characteristics of the original soil are still identifiable .
Gravel Pit (GP) : The Gravel Pit land type consists of both active and inactive areas of gravel or san d
extraction sufficiently large to be mapped at the time of the survey . About 550 ha are classified as Grave l
Pit land type .
Ice (I) : The Ice land type consists of glaciers and permanent snow fields that occupy a small part of the ma p
area. About 85 ha are classified as Ice land type in the vicinity of Mt . Robie Reid .
Recent Alluvium (RA) : The Recent Alluvium land type is composed of gravel and sand bars, spits an d
other similar deposits in or adjacent to rivers and streams . They are usually inundated except during low
water and are generally unvegetated. Their shape, size and location may be altered from year to year b y
erosion and subsequent redeposition . About 1050 ha are classified as Recent Alluvium land type, mainl y
in or adjacent to the Fraser River.
Rock Outcrop (RO) : The Rock Outcrop land type is common in the map area, particularly at the highe r
elevations in the mountains . It consists of areas of exposed bedrock or bedrock areas with less than 10 c m
of mineral or organic soil on the rock surface . Topographically, Rock Outcrops areas are usually very t o
extremely sloping or hilly to very hilly ; slope gradients are mostly greater than 30 percent. About 440 ha of
Rock Outcrop land type are classified as well as 23 040 ha of complexes dominated by Rock Outcrop . Th e
complexes are with a variety of soils and Talus land type .
Talus (TA) : The Talus land type consists of actively accumulating, colluvial depositions of mostly gravel ,
stones and boulders at the base of rock cliffs and other steep rock faces . They are usually unvegetated
and occur mainly at the higher elevations in association with Rock Outcrops . About 3290 ha are classified
as Talus land type with an additional 430 ha mapped as complexes dominated by Talus land type . Th e
complexes are mostly with Rock Outcrop land type and Paton and Lions soils .
Tidal Flat (TF) : The Tidal Flat land type consists of areas lying outside the dykes that are periodicall y
covered by tidal waters . The main areas are along Boundary and Mud Bays, along Roberts Bank and nea r
the mouth of the Fraser River . The deposits are mainly fine sandy to silty in texture, are strongly saline and
very poorly drained . About 3940 ha are classified as Tidal Flat land type .
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