#4 Really like this idea with the mountain. Our current logo has Anza, CA in it as well. Maybe add that under Creek so it balances out the word motocross on the right.
#5 I like the white behind the red letters, possibly use this with the mountain behind it. The white seems to add punch and make it just out a little more.
#7 Can you make the words Cahuilla Creek pop out more against the mountains? Either outline with another color or add more white around the outside edges of the letters.
Try some different font styles for the Cahuilla Creek wording. It seems a little plain, but sometimes thats not a bad thing. I would just like to see what it might look like with a style more eye catching or wowing.
#33 I like this better, but I like the way you did that swoop line on #37 but can I see it with the motorcycle graphic in black and the mountains bigger behind the Cahuilla Creek name?