I played Indian Canyons in Palm Springs. Interestingly, I found it to be the opposite - too easy and not at all demanding. If I recall correctly, it's near 7000 yards and par 72, but the rating from the tips doesn't even hit 71.0.
The piece of property is very odd - kind of wedged against a road, and only 17 holes are on the central piece of property - the 6th hole, a short and nondescript par 3, is through a tunnel and plays between houses, after which you go through a second tunnel back to where you started, backtrack a few hundred yards, and go play the 7th.
I'll post some pictures in tomorrow if anyone's interested, but overall I felt it was an average course - the routing on the front nine was downright weird...it truly made no sense, though most of the holes were perfectly fine when considered individually.
The back was definitely better, but a few weak spots including nearly identical back-to-back par 4s (I think 14 and 15) are distracting. The back nine makes interesting use of strangely bent palm trees as a strategic feature.
I still, for the life of me, can't understand the 6th hole though.
Oh, and Amy Alcott is credited with consulting on the design.