You may feel your area is too flat for slope soaring but I would bet that is not true. You just don't understand enough about slope soaring to recognize a good slope spot when you see it.
When you look at the pictures and videos of cool slope sites the look like monster mountains, sweeping vistas of grassy hills and suff like that. Well, yes, those are the true heaven of slope soaring, but you don't need that much to slope soar.
I have sloped 4 foot sand dunes, large buildings, commercial excavatoins.
YOu can slope Dams, bridges, barns, large houses, rock walls, retaining walls, stockade fences, and I have even heard of people flying slope off of tractor trailers and railroad trains.
WHAT DO YOU NEED FOR SLOPE SOARING?
2) Blockage - something to get in the winds way
What makes it better
Open space in front of the blockage so the wind hitting the block is smooth
Height - 4 feet is enough but 400 feet is spectacular
Slope Soaring in New Mexico - a pretty flat place
Slope site - Wyoming