Which preposition is correct to use here, "of" or "to"? Hi there, Could someone please tell me which preposition is right to use in the following sentence? 1. I made the first ascent OF Mt. Everest last year. 2. I made the first ascent TO Mt. Everest last year. Any help would be appreciated. Thanks, NanakoThank you for your help. I understand that the first sentence works best here. Please kindly allow me to ask another question. If I change the sentence as seen below, now it works better with "to" than with "of"? 1. The ascent TO the top of Mt. Everest was harder than I thought. 2. The ascent OF the top of Mt. Everest was harder than I thought. Thanks.