We have some of these out in our forest. The berries are a lot different tasting than the bramble berries. The plants are way different looking too. They look like a tree, and the leaves are pointy. The blooms look just like that! I finally found out what they were when I got an old Native Plants and Wildflowers book at a thrift store.(From 1934!) It's a great book. Now I can ID anything out there! The book also said that these berries make the best pies.
Being from the PNW, yours could be Pacific
Serviceberry (Amelanchier florida).
also called saskatoon berries. They're good to eat, they look like blueberries almost.
Saskatoons (Serviceberry) grow here in the bucket full. The tastiest berry EVER!
YUMMY. also make the best pies and jam.
(they aren't related to the blueberry or brambleberry)