You will need:
Under the trail, place the images you want to use for the verses. (I am only including the first two because the third can be sung and understood better by the congregation during the program.)
As you teach the song, the wagon moves across
the plains to it's final destination. You can have certain pictures
get "lost" along the trail (the kids love taking pictures away!) or use
this idea without the pictures as an incentive game.

You will need:
On the upper circles, draw wagon wheels. Between two spokes, cut a wedge shape out (or, if you are using just two pieces of board, paste the picture inbetween the spokes). This should give you a nice window. On the bottom "wheels", paste the pictures you want to use. Use the wheel with a window for placement. As the wheel turns, you should see a whole image in the window. Attach the top "wheel" to the bottom circle by putting a brad through the center.
Over a portable chalkboard, drape the sheet. You can also fold the sheet in half and tack it to the cork strip along the top of a wall-mounted chalkboard. Hang the wheels at the bottom of the sheet, gathering the sheet if you'd like, to make the "wagon".
As you teach the song, the wheels will turn
to show the pictures you need. The children can help turn the wheels,
and change the pace of the song. (Be sure to warn your pianist before doing
this! :P)
You will need:
Staple the wide end of the butcher paper to one of the dowels. Leave 3" of dowel at the top and bottom for handles. On the paper, either you draw or have the shildren draw scenery depicting the trek West. Over the scenery, glue the images you want to use. At the end of your scroll, cut off the paper and staple to the other dowel. Roll up the scroll on one dowel.
Have one child hold the rolled-up end of
the dowel and another hold the other end. The one with the empty
end will pull the scroll open as you sing. The children will love to see
their own handiwork, and they can change the speed of the song by pulling
fast or slow. As the kids learn the song, open the scroll only part
way or roll up both ends to show only a certain part of the song.