- Dendritic drainage pattern: A drainage pattern in which the tributaries join the main channel at sharp angles, resembling the branches of a tree. This pattern is most common in areas with uniform geology and gentle slopes. - Parallel drainage pattern: A drainage pattern in which the tributaries flow parallel to each other and to the main channel. This pattern is most common in areas with steep slopes and parallel bands of rock. - Rectangular drainage pattern: A drainage pattern in which the tributaries intersect the main channel at right angles. This pattern is most common in areas with flat-lying sedimentary rocks. - Radial drainage pattern: A drainage pattern in which the tributaries flow away from a central point. This pattern is most common in areas with volcanic or domical mountains. - Centripetal drainage pattern: A drainage pattern in which the tributaries flow toward a central point. This pattern is most common in areas with closed depressions.