Peak bagging
Peak bagging, also known as hill bagging, mountain bagging, Munro bagging or simply bagging, is an activity in which hikers, hillwalkers and mountaineers attempt to reach the summits of a collection of peaks, usually those above some height or prominence in a particular region, or having a particular feature.
Many climbing clubs around the world have created lists of peaks with various attributes, often used by peak-baggers. Two examples of such lists are Colorado's 55 fourteeners and New Hampshire's 48 four-thousand footers. See List of mountain lists for more.
Styles
The generally accepted convention for peak baggers to consider a peak summited is to reach its highest point by any route using only human power (e.g., hiking, climbing, skiing, biking). However, for some peak baggers, simply being present at the highest point is sufficient to check the summit off the list. This allows for driving to car-accessible summits and declaring the summit "climbed". Drive-ups are allowed by the U.S. State Highpointers club and by the County Highpointers club, whose members are collectively attempting to reach the highest point in all 3,142 U.S. counties.