Opportunity is continuing her winter exploration of Perseverance Valley on the west rim of the Noachian-aged Endeavour Crater. Before moving to the next waypoint, the team commanded the rover on Sol 4916 (Nov. 21, 2017), to collect a Microscopic Image (MI) mosaic of a surface target, and then place the Alpha Particle X-ray Spectrometer (Perseverance Valley) for a multi-sol integration. While the APXS was integrating, Opportunity continued to collect extensive color panoramas of the surrounding terrain. These image data are part of a complete digital model the rover is assembling of the entire Perseverance Valley. With the in-situ (contact) science complete using the APXS, the rover drove on Sol 4922 (Nov. 27, 2017) about 46 feet (14 meters) to the next lily pad (energy favorable location) down the valley. Here Opportunity will continue the extensive image collection and take advantage of any surface targets under her feet.