Mounting up to a certain height or number can be expressed in various ways, depending on the context and the desired tone. Some possible synonyms include increasing, accumulating, rising, reaching, exceeding, evolving, elevating, augmenting, expanding, surmounting, growing, climbing, escalating, amassing, and intensifying. Each of these words conveys a slightly different nuance, such as the speed, intensity, or persistence of the process. For example, while "accumulating" suggests a slow and gradual build-up, "surmounting" implies a sudden and decisive breakthrough. Therefore, it is important to choose the appropriate synonym that best suits the intended meaning and impact of the sentence.