Preheat oven to 350 degrees.
In a mixing bowl combine flour, sugar, baking soda, and salt.
In a saucepan combine butter, water, and cocoa.
Cook and stir until butter is melted; add to dry ingredients.
Combine eggs, buttermilk, and vanilla; add to chocolate mixture and mix well.
Pour into a greased jelly roll pan.
Bake 20 - 25 minutes or until a toothpick inserted in center comes out clean.
Meanwhile, in a saucepan combine 1 c evaporated milk, 3/4 c sugar, and marshmallows.
Cook and stir until marshmallows are melted.
Remove from heat; stir in coconut.
Immediately sprinkle 1 c almonds over cake.
Spread coconut mixture over top.
Sprinkle with remaining almonds.
In a saucepan combine butter with remaining milk and sugar.
Cook and stir until butter is melted.
Remove from the heat; stir in chocolate chips until melted.
Drizzle over almonds.
Cool.