The overlook offers stunning views of the Toxic Valley, and has some harvestable resources like wild blackberry and wild carrot flowers. There is a mysterious button in the lefthand porta-potty, which is the emergency exit of Site Bravo. The nearby wrecked truck contains a wooden crate and a toolbox. East of the overlook, along Route 95, is an old raider checkpoint, possibly inhabited by super mutants.
This location is the map-marked location for taking down a yao guai as part of Flavors of Mayhem, however, it is not specifically required to be done here. If it is done here, a stunted yao guai will be spawned rather than the regular stronger types.
Bird watching list - Note, can be found on a picnic table on the wooden platform of the overlook.
The Monongah overlook appears only in Fallout 76.