Applegate Peak is another summit in Crater Lake National Park, but has more challenging route-finding and hiking than others. It is about 1.7 miles one-way cross-country - there is no trail or significant landmarks. A GPS with waypoints and a feeling for following the 'easy way' up draws and drainages will be useful for finding Applegate Peak, and more importantly, you way back.
Along the park's southern portion of Rim Drive, park in the small pullout near 42.87885 -122.10983. There are no other nearby places.