Location
A wooded area is the best place for building jumps it provides wood shade on hot days.
Tools
There are ten basic tools that would help you but you don't need all the tools the two that you really need are a spade shovel and a square shovel the other tools you can use are a pick, leaf rake, dirt rake, broom, axe, handsaw, wheelbarrow, and a roller
Building Jumps
To build jumps, stack up logs where you want your jump to be, and as high as you want it to be. You don't have to use logs you can almost use anything you want to use in your jumps. There are two reasons for this so you don't waste dirt and it creates the basic shape of the jump which make it easier to shape and pack the jump. After putting the log down the way you want start to throw the dirt on the jump and start to pack it down you have to pack it down very hard so that it won't sink and so your bike won't put dents into the jump. Now take the shovel either one and build a lip on the jump. You may wonder what the rest of the tools are for the rakes can be used to clear the path of the dust and the leafs.
