Final answer:
To find currently exposed metamorphic rocks, one should look in areas where there has been a continental collision, as these rocks are usually formed and exposed through processes like erosion. High-grade metamorphic rocks can often be found near the center of the collision, where uplift and erosion have occurred.
Step-by-step explanation:
If you are looking for currently exposed metamorphic rocks, one of the best places to look is in areas where there has been a continental collision. During a continental collision, metamorphic rocks are formed and can become exposed through processes like erosion. The high-grade metamorphic rocks are usually found near the center of the collision, where uplift and erosion have occurred. For example, in southern Alaska, there is a sequence of metamorphic rocks called the Chugach Metamorphic Complex that is exposed along the Tana River due to erosion by a glacier. So, to find currently exposed metamorphic rocks, it's important to look for areas with past or ongoing continental collisions and the potential for erosion.