Please help me find a show about a unicorn?

When I was a kid, I used to watch a show about a unicorn, a female one. I remember her being yellow, with an orange mane and tail. I remember scenes where she would stand a rock or cliff or something, and talk to some other unicorn with a beard through some sort of vortex type thing. She used to have a friend who was a brown horse, I can't remember if she was a unicorn or not. The brown horse may have been male, as I vaguely remember the yellow unicorn having a male friend as well. I am fourteen years old now, and watched this show as a toddler/pre-school age child, if that gives you any idea of the time period. I have been looking for this show for a very long time. Any help would be greatly appreciated, thank you in advance!! (And before you suggest it, no, it was not My Little Pony, the horses/unicorns in this show were bigger. Much bigger.)

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