During a paddle to Blakely Island I hugged the bedrock shoreline of Obstruction Island to observe the bedrock sequence. Most of the island consists of metamorphosed turbidites. These rocks are alternating silt and sandstone layers for the most part that were originally ocean floor sediments deposited by turbidity currents. Lapen (2000) assigned this particular set of turbidites to the Lummi Formation. Garver (1998) proposed calling these rocks the Obstruction Formation but still included them as part of what he termed the the Lummi Group. More on that after I straighten a few things out in my head.
The units along this sequence are tilted such that they made a nice ramp for river otters.
River otter hangout
Later during my venture while on shore some otters came to check me out while I made my way along the shoreline. It seemed a bit of role reversal. The animals were gawking at the wildlife (me) and keeping a safe distance from the potential dangerous wild animal ( me gain). I made up a conversation for them. "Don't get so close Fred." "He's not interested in us, he's just looking at the sand and beach and dirt". "I think he's a subspecies - geologist, their the only types out in this weather and this time of year." "Still, stay back. You never know when they'll turn and attack".
River otters keeping an eye on me
Later while heading back from Blakely Island, a harbor seal paralleled my course for while with occasional glances at me to be sure I was not getting too close. The seal hauled out on Spindle Island, a small bit of rock that is the San Juan Islands National Wildlife Refuge.
All in all a good field gig.