Oh right...the Owyhee Map...almost forgot about it.

6-8-2010_5-13-47_pm

For various reasons, I have dropped the Clark County mega-mega map for a day to work on the very nearly complete Owyhee River area map. In real life, this map is 40 inches by 40 inches at 1:36,000. Although I have compiled the mapping in the river corridor down to about 1:4500 in most places. Heading out to teach field camp there in a couple of days. Learned some handy new tricks in ArcGIS that really have improved map data management and symbolization. Will share them when my cloning experiment is successful.

Nearing the end...The Owyhee Map

I have spent many hours (while on family medical leave, no less) doing
the penultimate pass through the Owyhee map. Not only through the
detailed section but also out into the larger region from which the
lava flows originated.

Theses aren't the most beautiful snippets, but after one more pass,
the map will be nearly ready for external review. There is a chance
that Duane, Cooper, and I will do some additional fine-tuning of some
of the 'other' lava flows out there...you know, the ones we have
largely ignored, but are hugely important in the evolution of the
Owyhee system.

(download)

Draft version: Major volcanic vents in the Owyhee field area (east sector)

3-31-2010_9-00-58_am

Here is a map for the research group to review. This includes several sites mentioned in the paleomag update recently posted on Yeehow Central. Review it for naming conventions, placement, etc. Note also the addition of Danner Butte...an informal name for a likely vent associated with a youngish flow. Previously the lava related to that vent was grouped with that from Rocky/Lava Butte, but this was not feasible as it required a lot of lava to flow a long way uphill. The boundary between the two is not shown on this map, but I am working on it (Note: N. Bondre identified this vent as SH, but I have forgotten why...looking into that too).

State of the Owyhee River map, March 25, 2010

Believe it or not, this one is almost done. I have posted proof of that before. What remains is the correct attribution of all of the lines that you see in red. I am systematically going through the map and fixing all of these. I started at the east end. Don't ask why so many lines are unattributed...long story.

The first image shown here is the extent of the mapping taken to the source vents of the intracanyon lava flows. In this version, only the lava flows and landslide complexes are shown in color. The second image hones in on a small part of the area of detailed mapping (i.e., the river corridor where I have LiDAR and have logged many, many miles of reconn). It has the same color scheme but reveals that there are many other types of units...mainly fluvial deposits.

3-25-2010_5-30-57_pm

3-25-2010_5-36-50_pm