diff --git a/docs/src/regiongrids/create.md b/docs/src/basics/create.md
similarity index 98%
rename from docs/src/regiongrids/create.md
rename to docs/src/basics/create.md
index 6e8cf6c..306c55a 100644
--- a/docs/src/regiongrids/create.md
+++ b/docs/src/basics/create.md
@@ -1,4 +1,6 @@
-# RegionGrid: Applying GeoRegions to Gridded Data
+# Creating a RegionGrid
+
+Using RegionGrids.jl 
 
 In this section, we go through the basic steps of creating a RegionGrid for `RectRegion`s and `PolyRegion`s.  See if you can spot the differences between the RegionGrids generated by the two different types.
 
diff --git a/docs/src/regiongrids/intro.md b/docs/src/regiongrids/intro.md
deleted file mode 100644
index cbc3747..0000000
--- a/docs/src/regiongrids/intro.md
+++ /dev/null
@@ -1,14 +0,0 @@
-# What is a RegionGrid?
-
-But how do we go from defining a GeoRegion, to **extracting data** for that GeoRegion?  The answer is with the information in the `RegionGrid` types, which maps gridded lon-lat data to a given GeoRegion as follows:
-* Mapping gridded lon-lat data to a **`RectRegion`** gives a `RectGrid` structure
-* Mapping gridded lon-lat data to a **`PolyRegion`** gives a `PolyGrid` structure
-* Mapping non-rectilinear gridded lon-lat data to a **`RegionMask`** gives a `RegionMask` structure
-
-However, the basic uses of `RectGrid` and `PolyGrid` are the same, and as such their differences are largely transparent to the user, except for one field found in `PolyGrid`, the `mask`, which will be elaborated upon later.
-
-```@docs
-RegionGrid
-```
-
-So basically a `RegionGrid` contains information on the indices of the gridded data that are part of the `GeoRegion`, thus helping us extract the relevant data for a given `GeoRegion`.
\ No newline at end of file
diff --git a/docs/src/using/extract.md b/docs/src/tutorials/extract.md
similarity index 100%
rename from docs/src/using/extract.md
rename to docs/src/tutorials/extract.md
diff --git a/src/RegionGrids.jl b/src/RegionGrids.jl
index 58a9a1e..c4dfffd 100644
--- a/src/RegionGrids.jl
+++ b/src/RegionGrids.jl
@@ -15,7 +15,7 @@ using Reexport
 export
         RegionGrid,
         RectilinearGrid, RectGrid, PolyGrid, TiltGrid,
-        GeneralizedGrid, RegionMask, VectorMask, VectorGrid,
+        GeneralizedGrid, RegionMask, RegionTilt, VectorMask, VectorGrid,
 
         extract, extract!
 
@@ -33,7 +33,6 @@ abstract type RegionGrid end
 A `RectilinearGrid` is a `RegionGrid` that is created based on rectilinear longitude/latitude grids. It has its own subtypes: `RectGrid`, `TiltGrid` and `PolyGrid`.
 
 All `RectilinearGrid` types contain the following fields:
-* `grid` - A vector of `Int`s, defining the gridpoint indices of the [N,S,E,W] points respectively
 * `lon` - A vector of `Float`s, defining the latitude vector describing the region
 * `lat` - A vector of `Float`s, defining the latitude vector describing the region
 * `ilon` - A vector of `Int`s, defining indices of the parent longitude vector describing the region