Ascent of Bonny Benchmark on 2013-03-31

Climber: Michael Sullivan

Others in Party:Shelly Britton
Linda Altenhofen
----Only Party on Mountain
Date:Sunday, March 31, 2013
Ascent Type:Successful Summit Attained
Peak:Bonny Benchmark
    Elevation:4574 ft / 1394 m

Ascent Trip Report

Distance: 8.8 miles
Elevation gain/loss: 4085 ft / 4099 ft
Moving time: 4:33
Moving speed: 1.9 mph

Cross country hike across the Eastern border of Anza Borrego Desert State Park with five peaks bagged. Started up the CHRT and then bushwacked up to Hut BM (4308 ft). Made our way over to Bonny BM (4574 ft). Next we went by Chimney Rock then summited the unnamed rocky peak by Chimney Rock for a bonus peak #6. Continued on to White BM (5326 ft). Scrambled down the other side of White and then went over to The Thimble (5779 ft) just skirting the edge of private property but never entering into it. Climbed the Southeast corner of The Thimble and found the 25 ft chimney just below the summit. Chose not to climb the final pitch today for safety with the winds blowing 50 mph up there all day. Then circled around The Thimble and went down the North side and continued through the saddle and followed game trails over to the South base of San Ysidro. Climbed straight up San Ysidro (6147 ft) and found the only cairns of the day to lead the way up to the summit. Winds also blowing 50 mph+ on the summit, wow! Came back the same way and then traversed around White on the East side. Returned to Bonny and summited again to retrieve Shelly's anemometer that she had dropped in the summit cave. Followed more game trails back to the start. Was a much tougher hike today with sustained winds all day of 20-30 mph and 40-50+ mph on the summits. Awesome hike, Phew!!

Found all benchmarks! Station and Reference #1 on Hut. Station and Reference #1 on Bonny. White BM from Calif. Div of Beaches & Parks, not Corps of Engineers, and summit register can was missing. San Ysidro Station and Reference #1 and #2. Read online that summit register on Bonny was soaked so we replaced the missing ziplock bag.
Summary Total Data
    Route Conditions:
Unmaintained Trail, Open Country, Scramble
Ascent Part of Trip: Thimble 5 peak

Complete Trip Sequence:
1Hut Benchmark2013-03-31 aP 
2Bonny Benchmark2013-03-31 b 
3White Benchmark2013-03-31 c 
4The Thimble2013-03-31 d 
5San Ysidro Mountain2013-03-31 e 
GPS Data for Ascent/Trip

 GPS Waypoints - Hover or click to see name and lat/long
Peaks:  climbed and  unclimbed by Michael Sullivan
Click Here for a Full Screen Map
Note: GPS Tracks may not be accurate, and may not show the best route. Do not follow this route blindly. Conditions change frequently. Use of a GPS unit in the outdoors, even with a pre-loaded track, is no substitute for experience and good judgment. accepts NO responsibility or liability from use of this data.

Download this GPS track as a GPX file

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