AB Isopach Contour Plots

Below are contour plots using data from the atlas of the western canadian sedimentary basins well control data. If there are no contour lines in a certain area, it is becase there is no data for that area. If the lines are horintally straight it is becase there is no additional data, and the code which produced these used the previous known value. The layer with the most data points, which is the most interesting is definately mannville.