NM Established Series Rev. The Venzuni series consists of very deep, well drained, very slowly permeable soils that formed in alluvium derived from shale.
Venzuni soils are on stream terraces on valley floors and alluvial fans on valley sides.
Slopes range from 1 to 6 percent. The SMCS is usually moist, in all parts, for less than 90 cumulative days from April through October. It is usually dry, in some part, for more than 120 days cumulative days during the same period. It is continuously moist in some part November through April, but not moist all parts for 45 consecutive days from January through April. The period of maximum precipitation is July through October.