This is a 12 second video showing me do a couple basic (and comparatively small) jumps at the ‘Basic Training’ part of the freestyle mountain biking area at Black Rock (near Falls City, Oregon).

This jump along the ‘Granny’s Kitchen’ run is a little more substantial. I didn’t try it- no way.
I hope to buy a helmet cam to show what the ‘Bonzai’ run looks like- a very fast and fun downhill ride.