ATV Ranch’s, ATV guided adventure places?

Does anyone know of an ATV Ranch where youth can go on an ATV guided adventure? Preferably out West but this is not a must.

My buddy is a director for the Benefit4kids ( B4K.org ), it’s like Make a Wish Foundation but NOT anti-hunting and they only provide Outdoors wishes and adventure for the terminally ill child. They need options for an ATV Adventure location. There is a 12 year old boy who has just such a wish.

Thanks for your suggestions and help in advance. Links are preferred but names and such would help also.

thanks again,
Jim