Ridges can be on a surface.Logical formLearned from2 sentences. Ridges may be surrounded by a moat.Logical formLearned from2 sentences. Ridges may surround a valley.Logical formLearned from2 sentences. Mud can be from a (mountain ridge).Logical formLearned from2 sentences. A ridge can be to the south.Logical formLearned from2 sentences. Ridges can be constituted-of-or-filled-with deposits.Logical formLearned from2 sentences. (Arm plates) may have ridges.Logical formLearned from2 sentences. Ridges can be noticeable.Logical formLearned from2 sentences. The south may pertain-to ridges.Logical formLearned from2 sentences. Ridges may be bounded.Logical formLearned from2 sentences. Ridges can be whorled.Logical formLearned from2 sentences. (Limestone ridges) can be narrow.Logical formLearned from2 sentences. (Limestone ridges) can be in a pass.Logical formLearned from2 sentences. Hillwalkers may think of ridges.Logical formLearned from2 sentences. (Limestone ridges) can be interesting.Logical formLearned from2 sentences.